30886989

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 49920000

約数和(自身を除く): 19033011

約数列:

[1, 3, 7, 19, 21, 57, 133, 199, 389, 399, 597, 1167, 1393, 2723, 3781, 4179, 7391, 8169, 11343, 22173, 26467, 51737, 77411, 79401, 155211, 232233, 541877, 1470809, 1625631, 4412427, 10295663, 30886989]

約数ペア:

[(1, 30886989), (3, 10295663), (7, 4412427), (19, 1625631), (21, 1470809), (57, 541877), (133, 232233), (199, 155211), (389, 79401), (399, 77411), (597, 51737), (1167, 26467), (1393, 22173), (2723, 11343), (3781, 8169), (4179, 7391)]