21458324

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1321}}^1$

素因数の和:1487

約数の個数: 24

約数和(自身を含む): 39088896

約数和(自身を除く): 17630572

約数列:

[1, 2, 4, 31, 62, 124, 131, 262, 524, 1321, 2642, 4061, 5284, 8122, 16244, 40951, 81902, 163804, 173051, 346102, 692204, 5364581, 10729162, 21458324]

約数ペア:

[(1, 21458324), (2, 10729162), (4, 5364581), (31, 692204), (62, 346102), (124, 173051), (131, 163804), (262, 81902), (524, 40951), (1321, 16244), (2642, 8122), (4061, 5284)]