21377959

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{421}}^1$

素因数の和:570

約数の個数: 16

約数和(自身を含む): 23699520

約数和(自身を除く): 2321561

約数列:

[1, 17, 29, 103, 421, 493, 1751, 2987, 7157, 12209, 43363, 50779, 207553, 737171, 1257527, 21377959]

約数ペア:

[(1, 21377959), (17, 1257527), (29, 737171), (103, 207553), (421, 50779), (493, 43363), (1751, 12209), (2987, 7157)]