21918364

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13597}}^1$

素因数の和:13645

約数の個数: 24

約数和(自身を含む): 42643328

約数和(自身を除く): 20724964

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 13597, 27194, 54388, 176761, 353522, 421507, 707044, 843014, 1686028, 5479591, 10959182, 21918364]

約数ペア:

[(1, 21918364), (2, 10959182), (4, 5479591), (13, 1686028), (26, 843014), (31, 707044), (52, 421507), (62, 353522), (124, 176761), (403, 54388), (806, 27194), (1612, 13597)]