128468907

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1009}}^1$

素因数の和:1112

約数の個数: 48

約数和(自身を含む): 221844480

約数和(自身を除く): 93375573

約数列:

[1, 3, 7, 9, 21, 43, 47, 63, 129, 141, 301, 329, 387, 423, 903, 987, 1009, 2021, 2709, 2961, 3027, 6063, 7063, 9081, 14147, 18189, 21189, 42441, 43387, 47423, 63567, 127323, 130161, 142269, 303709, 331961, 390483, 426807, 911127, 995883, 2039189, 2733381, 2987649, 6117567, 14274323, 18352701, 42822969, 128468907]

約数ペア:

[(1, 128468907), (3, 42822969), (7, 18352701), (9, 14274323), (21, 6117567), (43, 2987649), (47, 2733381), (63, 2039189), (129, 995883), (141, 911127), (301, 426807), (329, 390483), (387, 331961), (423, 303709), (903, 142269), (987, 130161), (1009, 127323), (2021, 63567), (2709, 47423), (2961, 43387), (3027, 42441), (6063, 21189), (7063, 18189), (9081, 14147)]