220820979

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{557}}^1\times {\mathrm{1283}}^1$

素因数の和:1946

約数の個数: 16

約数和(自身を含む): 298052352

約数和(自身を除く): 77231373

約数列:

[1, 3, 103, 309, 557, 1283, 1671, 3849, 57371, 132149, 172113, 396447, 714631, 2143893, 73606993, 220820979]

約数ペア:

[(1, 220820979), (3, 73606993), (103, 2143893), (309, 714631), (557, 396447), (1283, 172113), (1671, 132149), (3849, 57371)]