20298289

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 25660800

約数和(自身を除く): 5362511

約数列:

[1, 11, 17, 19, 29, 187, 197, 209, 319, 323, 493, 551, 2167, 3349, 3553, 3743, 5423, 5713, 6061, 9367, 36839, 41173, 62843, 63631, 97121, 103037, 108547, 699941, 1068331, 1194017, 1845299, 20298289]

約数ペア:

[(1, 20298289), (11, 1845299), (17, 1194017), (19, 1068331), (29, 699941), (187, 108547), (197, 103037), (209, 97121), (319, 63631), (323, 62843), (493, 41173), (551, 36839), (2167, 9367), (3349, 6061), (3553, 5713), (3743, 5423)]