21115998

素因数分解:

$2^1\times 3^3\times {\mathrm{163}}^1\times {\mathrm{2399}}^1$

素因数の和:2573

約数の個数: 32

約数和(自身を含む): 47232000

約数和(自身を除く): 26116002

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 163, 326, 489, 978, 1467, 2399, 2934, 4401, 4798, 7197, 8802, 14394, 21591, 43182, 64773, 129546, 391037, 782074, 1173111, 2346222, 3519333, 7038666, 10557999, 21115998]

約数ペア:

[(1, 21115998), (2, 10557999), (3, 7038666), (6, 3519333), (9, 2346222), (18, 1173111), (27, 782074), (54, 391037), (163, 129546), (326, 64773), (489, 43182), (978, 21591), (1467, 14394), (2399, 8802), (2934, 7197), (4401, 4798)]