21847440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:161

約数の個数: 160

約数和(自身を含む): 72673920

約数和(自身を除く): 50826480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 43, 48, 58, 60, 73, 80, 86, 87, 116, 120, 129, 145, 146, 172, 174, 215, 219, 232, 240, 258, 290, 292, 344, 348, 365, 430, 435, 438, 464, 516, 580, 584, 645, 688, 696, 730, 860, 870, 876, 1032, 1095, 1160, 1168, 1247, 1290, 1392, 1460, 1720, 1740, 1752, 2064, 2117, 2190, 2320, 2494, 2580, 2920, 3139, 3440, 3480, 3504, 3741, 4234, 4380, 4988, 5160, 5840, 6235, 6278, 6351, 6960, 7482, 8468, 8760, 9417, 9976, 10320, 10585, 12470, 12556, 12702, 14964, 15695, 16936, 17520, 18705, 18834, 19952, 21170, 24940, 25112, 25404, 29928, 31390, 31755, 33872, 37410, 37668, 42340, 47085, 49880, 50224, 50808, 59856, 62780, 63510, 74820, 75336, 84680, 91031, 94170, 99760, 101616, 125560, 127020, 149640, 150672, 169360, 182062, 188340, 251120, 254040, 273093, 299280, 364124, 376680, 455155, 508080, 546186, 728248, 753360, 910310, 1092372, 1365465, 1456496, 1820620, 2184744, 2730930, 3641240, 4369488, 5461860, 7282480, 10923720, 21847440]

約数ペア:

[(1, 21847440), (2, 10923720), (3, 7282480), (4, 5461860), (5, 4369488), (6, 3641240), (8, 2730930), (10, 2184744), (12, 1820620), (15, 1456496), (16, 1365465), (20, 1092372), (24, 910310), (29, 753360), (30, 728248), (40, 546186), (43, 508080), (48, 455155), (58, 376680), (60, 364124), (73, 299280), (80, 273093), (86, 254040), (87, 251120), (116, 188340), (120, 182062), (129, 169360), (145, 150672), (146, 149640), (172, 127020), (174, 125560), (215, 101616), (219, 99760), (232, 94170), (240, 91031), (258, 84680), (290, 75336), (292, 74820), (344, 63510), (348, 62780), (365, 59856), (430, 50808), (435, 50224), (438, 49880), (464, 47085), (516, 42340), (580, 37668), (584, 37410), (645, 33872), (688, 31755), (696, 31390), (730, 29928), (860, 25404), (870, 25112), (876, 24940), (1032, 21170), (1095, 19952), (1160, 18834), (1168, 18705), (1247, 17520), (1290, 16936), (1392, 15695), (1460, 14964), (1720, 12702), (1740, 12556), (1752, 12470), (2064, 10585), (2117, 10320), (2190, 9976), (2320, 9417), (2494, 8760), (2580, 8468), (2920, 7482), (3139, 6960), (3440, 6351), (3480, 6278), (3504, 6235), (3741, 5840), (4234, 5160), (4380, 4988)]