21997101

素因数分解:

$3^1\times 7^1\times {\mathrm{467}}^1\times {\mathrm{2243}}^1$

素因数の和:2720

約数の個数: 16

約数和(自身を含む): 33606144

約数和(自身を除く): 11609043

約数列:

[1, 3, 7, 21, 467, 1401, 2243, 3269, 6729, 9807, 15701, 47103, 1047481, 3142443, 7332367, 21997101]

約数ペア:

[(1, 21997101), (3, 7332367), (7, 3142443), (21, 1047481), (467, 47103), (1401, 15701), (2243, 9807), (3269, 6729)]