21352808

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2381}}^1$

素因数の和:2465

約数の個数: 32

約数和(自身を含む): 42876000

約数和(自身を除く): 21523192

約数列:

[1, 2, 4, 8, 19, 38, 59, 76, 118, 152, 236, 472, 1121, 2242, 2381, 4484, 4762, 8968, 9524, 19048, 45239, 90478, 140479, 180956, 280958, 361912, 561916, 1123832, 2669101, 5338202, 10676404, 21352808]

約数ペア:

[(1, 21352808), (2, 10676404), (4, 5338202), (8, 2669101), (19, 1123832), (38, 561916), (59, 361912), (76, 280958), (118, 180956), (152, 140479), (236, 90478), (472, 45239), (1121, 19048), (2242, 9524), (2381, 8968), (4484, 4762)]