2158247

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{641}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 2732352

約数和(自身を除く): 574105

約数列:

[1, 7, 13, 37, 91, 259, 481, 641, 3367, 4487, 8333, 23717, 58331, 166019, 308321, 2158247]

約数ペア:

[(1, 2158247), (7, 308321), (13, 166019), (37, 58331), (91, 23717), (259, 8333), (481, 4487), (641, 3367)]