27720758

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:420

約数の個数: 32

約数和(自身を含む): 46728192

約数和(自身を除く): 19007434

約数列:

[1, 2, 13, 26, 31, 62, 163, 211, 326, 403, 422, 806, 2119, 2743, 4238, 5053, 5486, 6541, 10106, 13082, 34393, 65689, 68786, 85033, 131378, 170066, 447109, 894218, 1066183, 2132366, 13860379, 27720758]

約数ペア:

[(1, 27720758), (2, 13860379), (13, 2132366), (26, 1066183), (31, 894218), (62, 447109), (163, 170066), (211, 131378), (326, 85033), (403, 68786), (422, 65689), (806, 34393), (2119, 13082), (2743, 10106), (4238, 6541), (5053, 5486)]