21028854532

素因数分解:

$2^2\times 7^1\times {\mathrm{1531}}^1\times {\mathrm{490549}}^1$

素因数の和:492091

約数の個数: 24

約数和(自身を含む): 42085265600

約数和(自身を除く): 21056411068

約数列:

[1, 2, 4, 7, 14, 28, 1531, 3062, 6124, 10717, 21434, 42868, 490549, 981098, 1962196, 3433843, 6867686, 13735372, 751030519, 1502061038, 3004122076, 5257213633, 10514427266, 21028854532]

約数ペア:

[(1, 21028854532), (2, 10514427266), (4, 5257213633), (7, 3004122076), (14, 1502061038), (28, 751030519), (1531, 13735372), (3062, 6867686), (6124, 3433843), (10717, 1962196), (21434, 981098), (42868, 490549)]