21818828

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{1019}}^1$

素因数の和:1177

約数の個数: 24

約数和(自身を含む): 39327120

約数和(自身を除く): 17508292

約数列:

[1, 2, 4, 53, 101, 106, 202, 212, 404, 1019, 2038, 4076, 5353, 10706, 21412, 54007, 102919, 108014, 205838, 216028, 411676, 5454707, 10909414, 21818828]

約数ペア:

[(1, 21818828), (2, 10909414), (4, 5454707), (53, 411676), (101, 216028), (106, 205838), (202, 108014), (212, 102919), (404, 54007), (1019, 21412), (2038, 10706), (4076, 5353)]