25987491

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{607}}^1$

素因数の和:751

約数の個数: 24

約数和(自身を含む): 38697984

約数和(自身を除く): 12710493

約数列:

[1, 3, 9, 67, 71, 201, 213, 603, 607, 639, 1821, 4757, 5463, 14271, 40669, 42813, 43097, 122007, 129291, 366021, 387873, 2887499, 8662497, 25987491]

約数ペア:

[(1, 25987491), (3, 8662497), (9, 2887499), (67, 387873), (71, 366021), (201, 129291), (213, 122007), (603, 43097), (607, 42813), (639, 40669), (1821, 14271), (4757, 5463)]