21930870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1061}}^1$

素因数の和:1137

約数の個数: 64

約数和(自身を含む): 57806784

約数和(自身を除く): 35875914

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 53, 65, 78, 106, 130, 159, 195, 265, 318, 390, 530, 689, 795, 1061, 1378, 1590, 2067, 2122, 3183, 3445, 4134, 5305, 6366, 6890, 10335, 10610, 13793, 15915, 20670, 27586, 31830, 41379, 56233, 68965, 82758, 112466, 137930, 168699, 206895, 281165, 337398, 413790, 562330, 731029, 843495, 1462058, 1686990, 2193087, 3655145, 4386174, 7310290, 10965435, 21930870]

約数ペア:

[(1, 21930870), (2, 10965435), (3, 7310290), (5, 4386174), (6, 3655145), (10, 2193087), (13, 1686990), (15, 1462058), (26, 843495), (30, 731029), (39, 562330), (53, 413790), (65, 337398), (78, 281165), (106, 206895), (130, 168699), (159, 137930), (195, 112466), (265, 82758), (318, 68965), (390, 56233), (530, 41379), (689, 31830), (795, 27586), (1061, 20670), (1378, 15915), (1590, 13793), (2067, 10610), (2122, 10335), (3183, 6890), (3445, 6366), (4134, 5305)]