20953665

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{277}}^1$

素因数の和:370

約数の個数: 36

約数和(自身を含む): 37361532

約数和(自身を除く): 16407867

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 277, 369, 615, 831, 1385, 1681, 1845, 2493, 4155, 5043, 8405, 11357, 12465, 15129, 25215, 34071, 56785, 75645, 102213, 170355, 465637, 511065, 1396911, 2328185, 4190733, 6984555, 20953665]

約数ペア:

[(1, 20953665), (3, 6984555), (5, 4190733), (9, 2328185), (15, 1396911), (41, 511065), (45, 465637), (123, 170355), (205, 102213), (277, 75645), (369, 56785), (615, 34071), (831, 25215), (1385, 15129), (1681, 12465), (1845, 11357), (2493, 8405), (4155, 5043)]