20179159

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1061}}^1$

素因数の和:1111

約数の個数: 32

約数和(自身を含む): 28546560

約数和(自身を除く): 8367401

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 143, 209, 247, 1001, 1061, 1463, 1729, 2717, 7427, 11671, 13793, 19019, 20159, 81697, 96551, 141113, 151723, 221749, 262067, 1062061, 1552243, 1834469, 2882737, 20179159]

約数ペア:

[(1, 20179159), (7, 2882737), (11, 1834469), (13, 1552243), (19, 1062061), (77, 262067), (91, 221749), (133, 151723), (143, 141113), (209, 96551), (247, 81697), (1001, 20159), (1061, 19019), (1463, 13793), (1729, 11671), (2717, 7427)]