6649981

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{109}}^1$

素因数の和:173

約数の個数: 18

約数和(自身を含む): 7669530

約数和(自身を除く): 1019549

約数列:

[1, 13, 19, 109, 169, 247, 361, 1417, 2071, 3211, 4693, 18421, 26923, 39349, 61009, 349999, 511537, 6649981]

約数ペア:

[(1, 6649981), (13, 511537), (19, 349999), (109, 61009), (169, 39349), (247, 26923), (361, 18421), (1417, 4693), (2071, 3211)]