21053242

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{12637}}^1$

素因数の和:12670

約数の個数: 24

約数和(自身を含む): 38899764

約数和(自身を除く): 17846522

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 833, 1666, 12637, 25274, 88459, 176918, 214829, 429658, 619213, 1238426, 1503803, 3007606, 10526621, 21053242]

約数ペア:

[(1, 21053242), (2, 10526621), (7, 3007606), (14, 1503803), (17, 1238426), (34, 619213), (49, 429658), (98, 214829), (119, 176918), (238, 88459), (833, 25274), (1666, 12637)]