9721257

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5087}}^1$

素因数の和:5117

約数の個数: 24

約数和(自身を含む): 16240896

約数和(自身を除く): 6519639

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 5087, 15261, 35609, 66131, 106827, 198393, 249263, 462917, 747789, 1388751, 3240419, 9721257]

約数ペア:

[(1, 9721257), (3, 3240419), (7, 1388751), (13, 747789), (21, 462917), (39, 249263), (49, 198393), (91, 106827), (147, 66131), (273, 35609), (637, 15261), (1911, 5087)]