21728570

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{557}}^1$

素因数の和:694

約数の個数: 32

約数和(自身を含む): 40497408

約数和(自身を除く): 18768838

約数列:

[1, 2, 5, 10, 47, 83, 94, 166, 235, 415, 470, 557, 830, 1114, 2785, 3901, 5570, 7802, 19505, 26179, 39010, 46231, 52358, 92462, 130895, 231155, 261790, 462310, 2172857, 4345714, 10864285, 21728570]

約数ペア:

[(1, 21728570), (2, 10864285), (5, 4345714), (10, 2172857), (47, 462310), (83, 261790), (94, 231155), (166, 130895), (235, 92462), (415, 52358), (470, 46231), (557, 39010), (830, 26179), (1114, 19505), (2785, 7802), (3901, 5570)]