21139942

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{13229}}^1$

素因数の和:13295

約数の個数: 16

約数和(自身を含む): 34292160

約数和(自身を除く): 13152218

約数列:

[1, 2, 17, 34, 47, 94, 799, 1598, 13229, 26458, 224893, 449786, 621763, 1243526, 10569971, 21139942]

約数ペア:

[(1, 21139942), (2, 10569971), (17, 1243526), (34, 621763), (47, 449786), (94, 224893), (799, 26458), (1598, 13229)]