21165848

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12659}}^1$

素因数の和:12695

約数の個数: 32

約数和(自身を含む): 45576000

約数和(自身を除く): 24410152

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12659, 25318, 50636, 101272, 139249, 240521, 278498, 481042, 556996, 962084, 1113992, 1924168, 2645731, 5291462, 10582924, 21165848]

約数ペア:

[(1, 21165848), (2, 10582924), (4, 5291462), (8, 2645731), (11, 1924168), (19, 1113992), (22, 962084), (38, 556996), (44, 481042), (76, 278498), (88, 240521), (152, 139249), (209, 101272), (418, 50636), (836, 25318), (1672, 12659)]