20188854

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{983}}^1$

素因数の和:1161

約数の個数: 48

約数和(自身を含む): 50349312

約数和(自身を除く): 30160458

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 163, 326, 489, 978, 983, 1141, 1467, 1966, 2282, 2934, 2949, 3423, 5898, 6846, 6881, 8847, 10269, 13762, 17694, 20538, 20643, 41286, 61929, 123858, 160229, 320458, 480687, 961374, 1121603, 1442061, 2243206, 2884122, 3364809, 6729618, 10094427, 20188854]

約数ペア:

[(1, 20188854), (2, 10094427), (3, 6729618), (6, 3364809), (7, 2884122), (9, 2243206), (14, 1442061), (18, 1121603), (21, 961374), (42, 480687), (63, 320458), (126, 160229), (163, 123858), (326, 61929), (489, 41286), (978, 20643), (983, 20538), (1141, 17694), (1467, 13762), (1966, 10269), (2282, 8847), (2934, 6881), (2949, 6846), (3423, 5898)]