21109760

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:82

約数の個数: 176

約数和(自身を含む): 62883840

約数和(自身を除く): 41774080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 31, 32, 35, 38, 40, 56, 62, 64, 70, 76, 80, 95, 112, 124, 128, 133, 140, 152, 155, 160, 190, 217, 224, 248, 256, 266, 280, 304, 310, 320, 380, 434, 448, 496, 512, 532, 560, 589, 608, 620, 640, 665, 760, 868, 896, 992, 1024, 1064, 1085, 1120, 1178, 1216, 1240, 1280, 1330, 1520, 1736, 1792, 1984, 2128, 2170, 2240, 2356, 2432, 2480, 2560, 2660, 2945, 3040, 3472, 3584, 3968, 4123, 4256, 4340, 4480, 4712, 4864, 4960, 5120, 5320, 5890, 6080, 6944, 7168, 7936, 8246, 8512, 8680, 8960, 9424, 9728, 9920, 10640, 11780, 12160, 13888, 15872, 16492, 17024, 17360, 17920, 18848, 19456, 19840, 20615, 21280, 23560, 24320, 27776, 31744, 32984, 34048, 34720, 35840, 37696, 39680, 41230, 42560, 47120, 48640, 55552, 65968, 68096, 69440, 75392, 79360, 82460, 85120, 94240, 97280, 111104, 131936, 136192, 138880, 150784, 158720, 164920, 170240, 188480, 222208, 263872, 277760, 301568, 329840, 340480, 376960, 527744, 555520, 603136, 659680, 680960, 753920, 1055488, 1111040, 1319360, 1507840, 2110976, 2638720, 3015680, 4221952, 5277440, 10554880, 21109760]

約数ペア:

[(1, 21109760), (2, 10554880), (4, 5277440), (5, 4221952), (7, 3015680), (8, 2638720), (10, 2110976), (14, 1507840), (16, 1319360), (19, 1111040), (20, 1055488), (28, 753920), (31, 680960), (32, 659680), (35, 603136), (38, 555520), (40, 527744), (56, 376960), (62, 340480), (64, 329840), (70, 301568), (76, 277760), (80, 263872), (95, 222208), (112, 188480), (124, 170240), (128, 164920), (133, 158720), (140, 150784), (152, 138880), (155, 136192), (160, 131936), (190, 111104), (217, 97280), (224, 94240), (248, 85120), (256, 82460), (266, 79360), (280, 75392), (304, 69440), (310, 68096), (320, 65968), (380, 55552), (434, 48640), (448, 47120), (496, 42560), (512, 41230), (532, 39680), (560, 37696), (589, 35840), (608, 34720), (620, 34048), (640, 32984), (665, 31744), (760, 27776), (868, 24320), (896, 23560), (992, 21280), (1024, 20615), (1064, 19840), (1085, 19456), (1120, 18848), (1178, 17920), (1216, 17360), (1240, 17024), (1280, 16492), (1330, 15872), (1520, 13888), (1736, 12160), (1792, 11780), (1984, 10640), (2128, 9920), (2170, 9728), (2240, 9424), (2356, 8960), (2432, 8680), (2480, 8512), (2560, 8246), (2660, 7936), (2945, 7168), (3040, 6944), (3472, 6080), (3584, 5890), (3968, 5320), (4123, 5120), (4256, 4960), (4340, 4864), (4480, 4712)]