25728921

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:227

約数の個数: 40

約数和(自身を含む): 40249440

約数和(自身を除く): 14520519

約数列:

[1, 3, 9, 27, 43, 81, 83, 89, 129, 249, 267, 387, 747, 801, 1161, 2241, 2403, 3483, 3569, 3827, 6723, 7209, 7387, 10707, 11481, 22161, 32121, 34443, 66483, 96363, 103329, 199449, 289089, 309987, 317641, 598347, 952923, 2858769, 8576307, 25728921]

約数ペア:

[(1, 25728921), (3, 8576307), (9, 2858769), (27, 952923), (43, 598347), (81, 317641), (83, 309987), (89, 289089), (129, 199449), (249, 103329), (267, 96363), (387, 66483), (747, 34443), (801, 32121), (1161, 22161), (2241, 11481), (2403, 10707), (3483, 7387), (3569, 7209), (3827, 6723)]