21206286

素因数分解:

$2^1\times 3^4\times {\mathrm{79}}^1\times {\mathrm{1657}}^1$

素因数の和:1750

約数の個数: 40

約数和(自身を含む): 48148320

約数和(自身を除く): 26942034

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 81, 158, 162, 237, 474, 711, 1422, 1657, 2133, 3314, 4266, 4971, 6399, 9942, 12798, 14913, 29826, 44739, 89478, 130903, 134217, 261806, 268434, 392709, 785418, 1178127, 2356254, 3534381, 7068762, 10603143, 21206286]

約数ペア:

[(1, 21206286), (2, 10603143), (3, 7068762), (6, 3534381), (9, 2356254), (18, 1178127), (27, 785418), (54, 392709), (79, 268434), (81, 261806), (158, 134217), (162, 130903), (237, 89478), (474, 44739), (711, 29826), (1422, 14913), (1657, 12798), (2133, 9942), (3314, 6399), (4266, 4971)]