21053116

素因数分解:

$2^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{9059}}^1$

素因数の和:9153

約数の個数: 24

約数和(自身を含む): 42618240

約数和(自身を除く): 21565124

約数列:

[1, 2, 4, 7, 14, 28, 83, 166, 332, 581, 1162, 2324, 9059, 18118, 36236, 63413, 126826, 253652, 751897, 1503794, 3007588, 5263279, 10526558, 21053116]

約数ペア:

[(1, 21053116), (2, 10526558), (4, 5263279), (7, 3007588), (14, 1503794), (28, 751897), (83, 253652), (166, 126826), (332, 63413), (581, 36236), (1162, 18118), (2324, 9059)]