20187177

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{251}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 10294743

約数列:

[1, 3, 17, 19, 51, 57, 83, 249, 251, 323, 753, 969, 1411, 1577, 4233, 4267, 4731, 4769, 12801, 14307, 20833, 26809, 62499, 80427, 81073, 243219, 354161, 395827, 1062483, 1187481, 6729059, 20187177]

約数ペア:

[(1, 20187177), (3, 6729059), (17, 1187481), (19, 1062483), (51, 395827), (57, 354161), (83, 243219), (249, 81073), (251, 80427), (323, 62499), (753, 26809), (969, 20833), (1411, 14307), (1577, 12801), (4233, 4769), (4267, 4731)]