28921851

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{11197}}^1$

素因数の和:11251

約数の個数: 24

約数和(自身を含む): 48912864

約数和(自身を除く): 19991013

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 11197, 33591, 78379, 100773, 235137, 459077, 705411, 1377231, 3213539, 4131693, 9640617, 28921851]

約数ペア:

[(1, 28921851), (3, 9640617), (7, 4131693), (9, 3213539), (21, 1377231), (41, 705411), (63, 459077), (123, 235137), (287, 100773), (369, 78379), (861, 33591), (2583, 11197)]