31788549

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{2801}}^1$

素因数の和:2917

約数の個数: 24

約数和(自身を含む): 49976472

約数和(自身を除く): 18187923

約数列:

[1, 3, 9, 13, 39, 97, 117, 291, 873, 1261, 2801, 3783, 8403, 11349, 25209, 36413, 109239, 271697, 327717, 815091, 2445273, 3532061, 10596183, 31788549]

約数ペア:

[(1, 31788549), (3, 10596183), (9, 3532061), (13, 2445273), (39, 815091), (97, 327717), (117, 271697), (291, 109239), (873, 36413), (1261, 25209), (2801, 11349), (3783, 8403)]