21355876

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{5323}}^1$

素因数の和:5403

約数の個数: 24

約数和(自身を含む): 40249440

約数和(自身を除く): 18893564

約数列:

[1, 2, 4, 17, 34, 59, 68, 118, 236, 1003, 2006, 4012, 5323, 10646, 21292, 90491, 180982, 314057, 361964, 628114, 1256228, 5338969, 10677938, 21355876]

約数ペア:

[(1, 21355876), (2, 10677938), (4, 5338969), (17, 1256228), (34, 628114), (59, 361964), (68, 314057), (118, 180982), (236, 90491), (1003, 21292), (2006, 10646), (4012, 5323)]