18138289

素因数分解:

${\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 20154960

約数和(自身を除く): 2016671

約数列:

[1, 13, 61, 89, 257, 793, 1157, 3341, 5429, 15677, 22873, 70577, 203801, 297349, 1395253, 18138289]

約数ペア:

[(1, 18138289), (13, 1395253), (61, 297349), (89, 203801), (257, 70577), (793, 22873), (1157, 15677), (3341, 5429)]