25872921

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1$

素因数の和:581

約数の個数: 24

約数和(自身を含む): 38379744

約数和(自身を除く): 12506823

約数列:

[1, 3, 9, 67, 107, 201, 321, 401, 603, 963, 1203, 3609, 7169, 21507, 26867, 42907, 64521, 80601, 128721, 241803, 386163, 2874769, 8624307, 25872921]

約数ペア:

[(1, 25872921), (3, 8624307), (9, 2874769), (67, 386163), (107, 241803), (201, 128721), (321, 80601), (401, 64521), (603, 42907), (963, 26867), (1203, 21507), (3609, 7169)]