21665178

素因数分解:

$2^1\times 3^3\times {\mathrm{151}}^1\times {\mathrm{2657}}^1$

素因数の和:2819

約数の個数: 32

約数和(自身を含む): 48481920

約数和(自身を除く): 26816742

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 151, 302, 453, 906, 1359, 2657, 2718, 4077, 5314, 7971, 8154, 15942, 23913, 47826, 71739, 143478, 401207, 802414, 1203621, 2407242, 3610863, 7221726, 10832589, 21665178]

約数ペア:

[(1, 21665178), (2, 10832589), (3, 7221726), (6, 3610863), (9, 2407242), (18, 1203621), (27, 802414), (54, 401207), (151, 143478), (302, 71739), (453, 47826), (906, 23913), (1359, 15942), (2657, 8154), (2718, 7971), (4077, 5314)]