28673421

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{19231}}^1$

素因数の和:19312

約数の個数: 16

約数和(自身を含む): 44310528

約数和(自身を除く): 15637107

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 19231, 57693, 134617, 403851, 1365401, 4096203, 9557807, 28673421]

約数ペア:

[(1, 28673421), (3, 9557807), (7, 4096203), (21, 1365401), (71, 403851), (213, 134617), (497, 57693), (1491, 19231)]