21576536

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2689}}^1$

素因数の和:2771

約数の個数: 32

約数和(自身を含む): 43578000

約数和(自身を除く): 22001464

約数列:

[1, 2, 4, 8, 17, 34, 59, 68, 118, 136, 236, 472, 1003, 2006, 2689, 4012, 5378, 8024, 10756, 21512, 45713, 91426, 158651, 182852, 317302, 365704, 634604, 1269208, 2697067, 5394134, 10788268, 21576536]

約数ペア:

[(1, 21576536), (2, 10788268), (4, 5394134), (8, 2697067), (17, 1269208), (34, 634604), (59, 365704), (68, 317302), (118, 182852), (136, 158651), (236, 91426), (472, 45713), (1003, 21512), (2006, 10756), (2689, 8024), (4012, 5378)]