20178118

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{271}}^1\times {\mathrm{631}}^1$

素因数の和:963

約数の個数: 16

約数和(自身を含む): 30942720

約数和(自身を除く): 10764602

約数列:

[1, 2, 59, 118, 271, 542, 631, 1262, 15989, 31978, 37229, 74458, 171001, 342002, 10089059, 20178118]

約数ペア:

[(1, 20178118), (2, 10089059), (59, 342002), (118, 171001), (271, 74458), (542, 37229), (631, 31978), (1262, 15989)]