21112844

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{4373}}^1$

素因数の和:4465

約数の個数: 24

約数和(自身を含む): 39680928

約数和(自身を除く): 18568084

約数列:

[1, 2, 4, 17, 34, 68, 71, 142, 284, 1207, 2414, 4373, 4828, 8746, 17492, 74341, 148682, 297364, 310483, 620966, 1241932, 5278211, 10556422, 21112844]

約数ペア:

[(1, 21112844), (2, 10556422), (4, 5278211), (17, 1241932), (34, 620966), (68, 310483), (71, 297364), (142, 148682), (284, 74341), (1207, 17492), (2414, 8746), (4373, 4828)]