21613029

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{751}}^1$

素因数の和:988

約数の個数: 16

約数和(自身を含む): 29562624

約数和(自身を除く): 7949595

約数列:

[1, 3, 53, 159, 181, 543, 751, 2253, 9593, 28779, 39803, 119409, 135931, 407793, 7204343, 21613029]

約数ペア:

[(1, 21613029), (3, 7204343), (53, 407793), (159, 135931), (181, 119409), (543, 39803), (751, 28779), (2253, 9593)]