20543895

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3539}}^1$

素因数の和:3596

約数の個数: 32

約数和(自身を含む): 37382400

約数和(自身を除く): 16838505

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3539, 5805, 10617, 17695, 31851, 53085, 95553, 152177, 159255, 456531, 477765, 760885, 1369593, 2282655, 4108779, 6847965, 20543895]

約数ペア:

[(1, 20543895), (3, 6847965), (5, 4108779), (9, 2282655), (15, 1369593), (27, 760885), (43, 477765), (45, 456531), (129, 159255), (135, 152177), (215, 95553), (387, 53085), (645, 31851), (1161, 17695), (1935, 10617), (3539, 5805)]