21550403

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{233}}^1$

素因数の和:494

約数の個数: 16

約数和(自身を含む): 25212096

約数和(自身を除く): 3661693

約数列:

[1, 7, 73, 181, 233, 511, 1267, 1631, 13213, 17009, 42173, 92491, 119063, 295211, 3078629, 21550403]

約数ペア:

[(1, 21550403), (7, 3078629), (73, 295211), (181, 119063), (233, 92491), (511, 42173), (1267, 17009), (1631, 13213)]