20703848

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1579}}^1$

素因数の和:1745

約数の個数: 32

約数和(自身を含む): 42660000

約数和(自身を除く): 21956152

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 149, 298, 596, 1192, 1579, 1639, 3158, 3278, 6316, 6556, 12632, 13112, 17369, 34738, 69476, 138952, 235271, 470542, 941084, 1882168, 2587981, 5175962, 10351924, 20703848]

約数ペア:

[(1, 20703848), (2, 10351924), (4, 5175962), (8, 2587981), (11, 1882168), (22, 941084), (44, 470542), (88, 235271), (149, 138952), (298, 69476), (596, 34738), (1192, 17369), (1579, 13112), (1639, 12632), (3158, 6556), (3278, 6316)]