20638107

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{14243}}^1$

素因数の和:14279

約数の個数: 24

約数和(自身を含む): 35553024

約数和(自身を除く): 14914917

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 14243, 42729, 99701, 128187, 299103, 327589, 897309, 982767, 2293123, 2948301, 6879369, 20638107]

約数ペア:

[(1, 20638107), (3, 6879369), (7, 2948301), (9, 2293123), (21, 982767), (23, 897309), (63, 327589), (69, 299103), (161, 128187), (207, 99701), (483, 42729), (1449, 14243)]