20573812

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 22004108

約数列:

[1, 2, 4, 7, 14, 28, 71, 79, 131, 142, 158, 262, 284, 316, 497, 524, 553, 917, 994, 1106, 1834, 1988, 2212, 3668, 5609, 9301, 10349, 11218, 18602, 20698, 22436, 37204, 39263, 41396, 65107, 72443, 78526, 130214, 144886, 157052, 260428, 289772, 734779, 1469558, 2939116, 5143453, 10286906, 20573812]

約数ペア:

[(1, 20573812), (2, 10286906), (4, 5143453), (7, 2939116), (14, 1469558), (28, 734779), (71, 289772), (79, 260428), (131, 157052), (142, 144886), (158, 130214), (262, 78526), (284, 72443), (316, 65107), (497, 41396), (524, 39263), (553, 37204), (917, 22436), (994, 20698), (1106, 18602), (1834, 11218), (1988, 10349), (2212, 9301), (3668, 5609)]