21433769

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{1987}}^1$

素因数の和:2084

約数の個数: 16

約数和(自身を含む): 25955328

約数和(自身を除く): 4521559

約数列:

[1, 7, 23, 67, 161, 469, 1541, 1987, 10787, 13909, 45701, 133129, 319907, 931903, 3061967, 21433769]

約数ペア:

[(1, 21433769), (7, 3061967), (23, 931903), (67, 319907), (161, 133129), (469, 45701), (1541, 13909), (1987, 10787)]