21858991

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{16699}}^1$

素因数の和:16734

約数の個数: 16

約数和(自身を含む): 28857600

約数和(自身を除く): 6998609

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 16699, 116893, 183689, 283883, 1285823, 1987181, 3122713, 21858991]

約数ペア:

[(1, 21858991), (7, 3122713), (11, 1987181), (17, 1285823), (77, 283883), (119, 183689), (187, 116893), (1309, 16699)]