21480778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{7127}}^1$

素因数の和:7277

約数の個数: 16

約数和(自身を含む): 35411904

約数和(自身を除く): 13931126

約数列:

[1, 2, 11, 22, 137, 274, 1507, 3014, 7127, 14254, 78397, 156794, 976399, 1952798, 10740389, 21480778]

約数ペア:

[(1, 21480778), (2, 10740389), (11, 1952798), (22, 976399), (137, 156794), (274, 78397), (1507, 14254), (3014, 7127)]