18438778

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:151

約数の個数: 48

約数和(自身を含む): 32713920

約数和(自身を除く): 14275142

約数列:

[1, 2, 17, 19, 23, 34, 38, 46, 73, 146, 289, 323, 391, 437, 578, 646, 782, 874, 1241, 1387, 1679, 2482, 2774, 3358, 5491, 6647, 7429, 10982, 13294, 14858, 21097, 23579, 28543, 31901, 42194, 47158, 57086, 63802, 126293, 252586, 400843, 485231, 542317, 801686, 970462, 1084634, 9219389, 18438778]

約数ペア:

[(1, 18438778), (2, 9219389), (17, 1084634), (19, 970462), (23, 801686), (34, 542317), (38, 485231), (46, 400843), (73, 252586), (146, 126293), (289, 63802), (323, 57086), (391, 47158), (437, 42194), (578, 31901), (646, 28543), (782, 23579), (874, 21097), (1241, 14858), (1387, 13294), (1679, 10982), (2482, 7429), (2774, 6647), (3358, 5491)]