21131614

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{10859}}^1$

素因数の和:11007

約数の個数: 16

約数和(自身を含む): 36489600

約数和(自身を除く): 15357986

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 10859, 21718, 76013, 152026, 1509401, 3018802, 10565807, 21131614]

約数ペア:

[(1, 21131614), (2, 10565807), (7, 3018802), (14, 1509401), (139, 152026), (278, 76013), (973, 21718), (1946, 10859)]