21051219

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{58967}}^1$

素因数の和:58994

約数の個数: 16

約数和(自身を含む): 33965568

約数和(自身を除く): 12914349

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 58967, 176901, 412769, 1002439, 1238307, 3007317, 7017073, 21051219]

約数ペア:

[(1, 21051219), (3, 7017073), (7, 3007317), (17, 1238307), (21, 1002439), (51, 412769), (119, 176901), (357, 58967)]