21175976

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{829}}^1$

素因数の和:969

約数の個数: 32

約数和(自身を含む): 41433600

約数和(自身を除く): 20257624

約数列:

[1, 2, 4, 8, 31, 62, 103, 124, 206, 248, 412, 824, 829, 1658, 3193, 3316, 6386, 6632, 12772, 25544, 25699, 51398, 85387, 102796, 170774, 205592, 341548, 683096, 2646997, 5293994, 10587988, 21175976]

約数ペア:

[(1, 21175976), (2, 10587988), (4, 5293994), (8, 2646997), (31, 683096), (62, 341548), (103, 205592), (124, 170774), (206, 102796), (248, 85387), (412, 51398), (824, 25699), (829, 25544), (1658, 12772), (3193, 6632), (3316, 6386)]