21800002

素因数分解:

$2^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{1229}}^1$

素因数の和:1426

約数の個数: 24

約数和(自身を含む): 38280060

約数和(自身を除く): 16480058

約数列:

[1, 2, 7, 14, 49, 98, 181, 362, 1229, 1267, 2458, 2534, 8603, 8869, 17206, 17738, 60221, 120442, 222449, 444898, 1557143, 3114286, 10900001, 21800002]

約数ペア:

[(1, 21800002), (2, 10900001), (7, 3114286), (14, 1557143), (49, 444898), (98, 222449), (181, 120442), (362, 60221), (1229, 17738), (1267, 17206), (2458, 8869), (2534, 8603)]