21668542

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{25373}}^1$

素因数の和:25443

約数の個数: 16

約数和(自身を含む): 37756512

約数和(自身を除く): 16087970

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 25373, 50746, 177611, 355222, 1547753, 3095506, 10834271, 21668542]

約数ペア:

[(1, 21668542), (2, 10834271), (7, 3095506), (14, 1547753), (61, 355222), (122, 177611), (427, 50746), (854, 25373)]