261561911

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{28219}}^1$

素因数の和:28286

約数の個数: 16

約数和(自身を含む): 303421440

約数和(自身を除く): 41859529

約数列:

[1, 13, 23, 31, 299, 403, 713, 9269, 28219, 366847, 649037, 874789, 8437481, 11372257, 20120147, 261561911]

約数ペア:

[(1, 261561911), (13, 20120147), (23, 11372257), (31, 8437481), (299, 874789), (403, 649037), (713, 366847), (9269, 28219)]