221489168

素因数分解:

$2^4\times {\mathrm{317}}^1\times {\mathrm{43669}}^1$

素因数の和:43994

約数の個数: 20

約数和(自身を含む): 430498860

約数和(自身を除く): 209009692

約数列:

[1, 2, 4, 8, 16, 317, 634, 1268, 2536, 5072, 43669, 87338, 174676, 349352, 698704, 13843073, 27686146, 55372292, 110744584, 221489168]

約数ペア:

[(1, 221489168), (2, 110744584), (4, 55372292), (8, 27686146), (16, 13843073), (317, 698704), (634, 349352), (1268, 174676), (2536, 87338), (5072, 43669)]