21803614

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{12263}}^1$

素因数の和:12399

約数の個数: 16

約数和(自身を含む): 37675008

約数和(自身を除く): 15871394

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 12263, 24526, 85841, 171682, 1557401, 3114802, 10901807, 21803614]

約数ペア:

[(1, 21803614), (2, 10901807), (7, 3114802), (14, 1557401), (127, 171682), (254, 85841), (889, 24526), (1778, 12263)]