21268856

素因数分解:

$2^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{2549}}^1$

素因数の和:2711

約数の個数: 32

約数和(自身を含む): 45900000

約数和(自身を除く): 24631144

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 149, 298, 596, 1043, 1192, 2086, 2549, 4172, 5098, 8344, 10196, 17843, 20392, 35686, 71372, 142744, 379801, 759602, 1519204, 2658607, 3038408, 5317214, 10634428, 21268856]

約数ペア:

[(1, 21268856), (2, 10634428), (4, 5317214), (7, 3038408), (8, 2658607), (14, 1519204), (28, 759602), (56, 379801), (149, 142744), (298, 71372), (596, 35686), (1043, 20392), (1192, 17843), (2086, 10196), (2549, 8344), (4172, 5098)]