20505045

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{823}}^1$

素因数の和:993

約数の個数: 32

約数和(自身を含む): 36071424

約数和(自身を除く): 15566379

約数列:

[1, 3, 5, 11, 15, 33, 55, 151, 165, 453, 755, 823, 1661, 2265, 2469, 4115, 4983, 8305, 9053, 12345, 24915, 27159, 45265, 124273, 135795, 372819, 621365, 1367003, 1864095, 4101009, 6835015, 20505045]

約数ペア:

[(1, 20505045), (3, 6835015), (5, 4101009), (11, 1864095), (15, 1367003), (33, 621365), (55, 372819), (151, 135795), (165, 124273), (453, 45265), (755, 27159), (823, 24915), (1661, 12345), (2265, 9053), (2469, 8305), (4115, 4983)]