21607040

素因数分解:

$2^7\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1$

素因数の和:99

約数の個数: 192

約数和(自身を含む): 65930760

約数和(自身を除く): 44323720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 53, 56, 64, 65, 70, 80, 91, 98, 104, 106, 112, 128, 130, 140, 160, 182, 196, 208, 212, 224, 245, 260, 265, 280, 320, 364, 371, 392, 416, 424, 448, 455, 490, 520, 530, 560, 637, 640, 689, 728, 742, 784, 832, 848, 896, 910, 980, 1040, 1060, 1120, 1274, 1378, 1456, 1484, 1568, 1664, 1696, 1820, 1855, 1960, 2080, 2120, 2240, 2548, 2597, 2756, 2912, 2968, 3136, 3185, 3392, 3445, 3640, 3710, 3920, 4160, 4240, 4480, 4823, 5096, 5194, 5512, 5824, 5936, 6272, 6370, 6784, 6890, 7280, 7420, 7840, 8320, 8480, 9646, 10192, 10388, 11024, 11648, 11872, 12740, 12985, 13780, 14560, 14840, 15680, 16960, 19292, 20384, 20776, 22048, 23744, 24115, 25480, 25970, 27560, 29120, 29680, 31360, 33761, 33920, 38584, 40768, 41552, 44096, 47488, 48230, 50960, 51940, 55120, 58240, 59360, 67522, 77168, 81536, 83104, 88192, 96460, 101920, 103880, 110240, 118720, 135044, 154336, 166208, 168805, 192920, 203840, 207760, 220480, 237440, 270088, 308672, 332416, 337610, 385840, 407680, 415520, 440960, 540176, 617344, 675220, 771680, 831040, 1080352, 1350440, 1543360, 1662080, 2160704, 2700880, 3086720, 4321408, 5401760, 10803520, 21607040]

約数ペア:

[(1, 21607040), (2, 10803520), (4, 5401760), (5, 4321408), (7, 3086720), (8, 2700880), (10, 2160704), (13, 1662080), (14, 1543360), (16, 1350440), (20, 1080352), (26, 831040), (28, 771680), (32, 675220), (35, 617344), (40, 540176), (49, 440960), (52, 415520), (53, 407680), (56, 385840), (64, 337610), (65, 332416), (70, 308672), (80, 270088), (91, 237440), (98, 220480), (104, 207760), (106, 203840), (112, 192920), (128, 168805), (130, 166208), (140, 154336), (160, 135044), (182, 118720), (196, 110240), (208, 103880), (212, 101920), (224, 96460), (245, 88192), (260, 83104), (265, 81536), (280, 77168), (320, 67522), (364, 59360), (371, 58240), (392, 55120), (416, 51940), (424, 50960), (448, 48230), (455, 47488), (490, 44096), (520, 41552), (530, 40768), (560, 38584), (637, 33920), (640, 33761), (689, 31360), (728, 29680), (742, 29120), (784, 27560), (832, 25970), (848, 25480), (896, 24115), (910, 23744), (980, 22048), (1040, 20776), (1060, 20384), (1120, 19292), (1274, 16960), (1378, 15680), (1456, 14840), (1484, 14560), (1568, 13780), (1664, 12985), (1696, 12740), (1820, 11872), (1855, 11648), (1960, 11024), (2080, 10388), (2120, 10192), (2240, 9646), (2548, 8480), (2597, 8320), (2756, 7840), (2912, 7420), (2968, 7280), (3136, 6890), (3185, 6784), (3392, 6370), (3445, 6272), (3640, 5936), (3710, 5824), (3920, 5512), (4160, 5194), (4240, 5096), (4480, 4823)]