21560668

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{1187}}^1$

素因数の和:1449

約数の個数: 24

約数和(自身を含む): 39916800

約数和(自身を除く): 18356132

約数列:

[1, 2, 4, 19, 38, 76, 239, 478, 956, 1187, 2374, 4541, 4748, 9082, 18164, 22553, 45106, 90212, 283693, 567386, 1134772, 5390167, 10780334, 21560668]

約数ペア:

[(1, 21560668), (2, 10780334), (4, 5390167), (19, 1134772), (38, 567386), (76, 283693), (239, 90212), (478, 45106), (956, 22553), (1187, 18164), (2374, 9082), (4541, 4748)]