21000966556

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{4603}}^1\times {\mathrm{21521}}^1$

素因数の和:26181

約数の個数: 24

約数和(自身を含む): 37454994864

約数和(自身を除く): 16454028308

約数列:

[1, 2, 4, 53, 106, 212, 4603, 9206, 18412, 21521, 43042, 86084, 243959, 487918, 975836, 1140613, 2281226, 4562452, 99061163, 198122326, 396244652, 5250241639, 10500483278, 21000966556]

約数ペア:

[(1, 21000966556), (2, 10500483278), (4, 5250241639), (53, 396244652), (106, 198122326), (212, 99061163), (4603, 4562452), (9206, 2281226), (18412, 1140613), (21521, 975836), (43042, 487918), (86084, 243959)]