18727331

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1013}}^1$

素因数の和:1178

約数の個数: 16

約数和(自身を含む): 22713600

約数和(自身を除く): 3986269

約数列:

[1, 7, 19, 133, 139, 973, 1013, 2641, 7091, 18487, 19247, 134729, 140807, 985649, 2675333, 18727331]

約数ペア:

[(1, 18727331), (7, 2675333), (19, 985649), (133, 140807), (139, 134729), (973, 19247), (1013, 18487), (2641, 7091)]