21103095

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3491}}^1$

素因数の和:3543

約数の個数: 32

約数和(自身を含む): 37545984

約数和(自身を除く): 16442889

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 195, 403, 465, 1209, 2015, 3491, 6045, 10473, 17455, 45383, 52365, 108221, 136149, 226915, 324663, 541105, 680745, 1406873, 1623315, 4220619, 7034365, 21103095]

約数ペア:

[(1, 21103095), (3, 7034365), (5, 4220619), (13, 1623315), (15, 1406873), (31, 680745), (39, 541105), (65, 324663), (93, 226915), (155, 136149), (195, 108221), (403, 52365), (465, 45383), (1209, 17455), (2015, 10473), (3491, 6045)]