21184772

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{39821}}^1$

素因数の和:39851

約数の個数: 24

約数和(自身を含む): 44600640

約数和(自身を除く): 23415868

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 39821, 79642, 159284, 278747, 557494, 756599, 1114988, 1513198, 3026396, 5296193, 10592386, 21184772]

約数ペア:

[(1, 21184772), (2, 10592386), (4, 5296193), (7, 3026396), (14, 1513198), (19, 1114988), (28, 756599), (38, 557494), (76, 278747), (133, 159284), (266, 79642), (532, 39821)]