19814964

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1789}}^1$

素因数の和:1880

約数の個数: 48

約数和(自身を含む): 50520960

約数和(自身を除く): 30705996

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 71, 78, 142, 156, 213, 284, 426, 852, 923, 1789, 1846, 2769, 3578, 3692, 5367, 5538, 7156, 10734, 11076, 21468, 23257, 46514, 69771, 93028, 127019, 139542, 254038, 279084, 381057, 508076, 762114, 1524228, 1651247, 3302494, 4953741, 6604988, 9907482, 19814964]

約数ペア:

[(1, 19814964), (2, 9907482), (3, 6604988), (4, 4953741), (6, 3302494), (12, 1651247), (13, 1524228), (26, 762114), (39, 508076), (52, 381057), (71, 279084), (78, 254038), (142, 139542), (156, 127019), (213, 93028), (284, 69771), (426, 46514), (852, 23257), (923, 21468), (1789, 11076), (1846, 10734), (2769, 7156), (3578, 5538), (3692, 5367)]