21629729

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 26873856

約数和(自身を除く): 5244127

約数列:

[1, 11, 17, 23, 47, 107, 187, 253, 391, 517, 799, 1081, 1177, 1819, 2461, 4301, 5029, 8789, 11891, 18377, 20009, 27071, 41837, 55319, 85493, 115667, 202147, 460207, 940423, 1272337, 1966339, 21629729]

約数ペア:

[(1, 21629729), (11, 1966339), (17, 1272337), (23, 940423), (47, 460207), (107, 202147), (187, 115667), (253, 85493), (391, 55319), (517, 41837), (799, 27071), (1081, 20009), (1177, 18377), (1819, 11891), (2461, 8789), (4301, 5029)]