21035409

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 10483311

約数列:

[1, 3, 17, 23, 51, 69, 79, 227, 237, 391, 681, 1173, 1343, 1817, 3859, 4029, 5221, 5451, 11577, 15663, 17933, 30889, 53799, 88757, 92667, 266271, 304861, 412459, 914583, 1237377, 7011803, 21035409]

約数ペア:

[(1, 21035409), (3, 7011803), (17, 1237377), (23, 914583), (51, 412459), (69, 304861), (79, 266271), (227, 92667), (237, 88757), (391, 53799), (681, 30889), (1173, 17933), (1343, 15663), (1817, 11577), (3859, 5451), (4029, 5221)]