21420752

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2273}}^1$

素因数の和:2331

約数の個数: 40

約数和(自身を含む): 45116160

約数和(自身を除く): 23695408

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2273, 2356, 4546, 4712, 9092, 9424, 18184, 36368, 43187, 70463, 86374, 140926, 172748, 281852, 345496, 563704, 690992, 1127408, 1338797, 2677594, 5355188, 10710376, 21420752]

約数ペア:

[(1, 21420752), (2, 10710376), (4, 5355188), (8, 2677594), (16, 1338797), (19, 1127408), (31, 690992), (38, 563704), (62, 345496), (76, 281852), (124, 172748), (152, 140926), (248, 86374), (304, 70463), (496, 43187), (589, 36368), (1178, 18184), (2273, 9424), (2356, 9092), (4546, 4712)]