201398281

素因数分解:

$7^5\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:579

約数の個数: 24

約数和(自身を含む): 245649024

約数和(自身を除く): 44250743

約数列:

[1, 7, 23, 49, 161, 343, 521, 1127, 2401, 3647, 7889, 11983, 16807, 25529, 55223, 83881, 178703, 386561, 587167, 1250921, 4110169, 8756447, 28771183, 201398281]

約数ペア:

[(1, 201398281), (7, 28771183), (23, 8756447), (49, 4110169), (161, 1250921), (343, 587167), (521, 386561), (1127, 178703), (2401, 83881), (3647, 55223), (7889, 25529), (11983, 16807)]