21980782

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{3907}}^1$

素因数の和:4035

約数の個数: 16

約数和(自身を含む): 34468560

約数和(自身を除く): 12487778

約数列:

[1, 2, 29, 58, 97, 194, 2813, 3907, 5626, 7814, 113303, 226606, 378979, 757958, 10990391, 21980782]

約数ペア:

[(1, 21980782), (2, 10990391), (29, 757958), (58, 378979), (97, 226606), (194, 113303), (2813, 7814), (3907, 5626)]