18966237

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1$

素因数の和:122

約数の個数: 48

約数和(自身を含む): 30260160

約数和(自身を除く): 11293923

約数列:

[1, 3, 17, 19, 23, 37, 51, 57, 69, 111, 323, 391, 437, 529, 629, 703, 851, 969, 1173, 1311, 1587, 1887, 2109, 2553, 7429, 8993, 10051, 11951, 14467, 16169, 19573, 22287, 26979, 30153, 35853, 43401, 48507, 58719, 170867, 274873, 332741, 371887, 512601, 824619, 998223, 1115661, 6322079, 18966237]

約数ペア:

[(1, 18966237), (3, 6322079), (17, 1115661), (19, 998223), (23, 824619), (37, 512601), (51, 371887), (57, 332741), (69, 274873), (111, 170867), (323, 58719), (391, 48507), (437, 43401), (529, 35853), (629, 30153), (703, 26979), (851, 22287), (969, 19573), (1173, 16169), (1311, 14467), (1587, 11951), (1887, 10051), (2109, 8993), (2553, 7429)]