90270957

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{971}}^1$

素因数の和:1233

約数の個数: 32

約数和(自身を含む): 145566720

約数和(自身を除く): 55295763

約数列:

[1, 3, 7, 19, 21, 57, 133, 233, 399, 699, 971, 1631, 2913, 4427, 4893, 6797, 13281, 18449, 20391, 30989, 55347, 92967, 129143, 226243, 387429, 678729, 1583701, 4298617, 4751103, 12895851, 30090319, 90270957]

約数ペア:

[(1, 90270957), (3, 30090319), (7, 12895851), (19, 4751103), (21, 4298617), (57, 1583701), (133, 678729), (233, 387429), (399, 226243), (699, 129143), (971, 92967), (1631, 55347), (2913, 30989), (4427, 20391), (4893, 18449), (6797, 13281)]