21819350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2011}}^1$

素因数の和:2061

約数の個数: 48

約数和(自身を含む): 47901696

約数和(自身を除く): 26082346

約数列:

[1, 2, 5, 7, 10, 14, 25, 31, 35, 50, 62, 70, 155, 175, 217, 310, 350, 434, 775, 1085, 1550, 2011, 2170, 4022, 5425, 10055, 10850, 14077, 20110, 28154, 50275, 62341, 70385, 100550, 124682, 140770, 311705, 351925, 436387, 623410, 703850, 872774, 1558525, 2181935, 3117050, 4363870, 10909675, 21819350]

約数ペア:

[(1, 21819350), (2, 10909675), (5, 4363870), (7, 3117050), (10, 2181935), (14, 1558525), (25, 872774), (31, 703850), (35, 623410), (50, 436387), (62, 351925), (70, 311705), (155, 140770), (175, 124682), (217, 100550), (310, 70385), (350, 62341), (434, 50275), (775, 28154), (1085, 20110), (1550, 14077), (2011, 10850), (2170, 10055), (4022, 5425)]