220395889

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1\times {\mathrm{2617}}^1$

素因数の和:2904

約数の個数: 16

約数和(自身を含む): 257862528

約数和(自身を除く): 37466639

約数列:

[1, 7, 53, 227, 371, 1589, 2617, 12031, 18319, 84217, 138701, 594059, 970907, 4158413, 31485127, 220395889]

約数ペア:

[(1, 220395889), (7, 31485127), (53, 4158413), (227, 970907), (371, 594059), (1589, 138701), (2617, 84217), (12031, 18319)]