21739912

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{44549}}^1$

素因数の和:44616

約数の個数: 16

約数和(自身を含む): 41431500

約数和(自身を除く): 19691588

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 44549, 89098, 178196, 356392, 2717489, 5434978, 10869956, 21739912]

約数ペア:

[(1, 21739912), (2, 10869956), (4, 5434978), (8, 2717489), (61, 356392), (122, 178196), (244, 89098), (488, 44549)]