20972254

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{5659}}^1$

素因数の和:5787

約数の個数: 16

約数和(自身を含む): 33620400

約数和(自身を除く): 12648146

約数列:

[1, 2, 17, 34, 109, 218, 1853, 3706, 5659, 11318, 96203, 192406, 616831, 1233662, 10486127, 20972254]

約数ペア:

[(1, 20972254), (2, 10486127), (17, 1233662), (34, 616831), (109, 192406), (218, 96203), (1853, 11318), (3706, 5659)]