18938088

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{20233}}^1$

素因数の和:20258

約数の個数: 48

約数和(自身を含む): 55238820

約数和(自身を除く): 36300732

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 20233, 40466, 60699, 80932, 121398, 161864, 182097, 242796, 263029, 364194, 485592, 526058, 728388, 789087, 1052116, 1456776, 1578174, 2104232, 2367261, 3156348, 4734522, 6312696, 9469044, 18938088]

約数ペア:

[(1, 18938088), (2, 9469044), (3, 6312696), (4, 4734522), (6, 3156348), (8, 2367261), (9, 2104232), (12, 1578174), (13, 1456776), (18, 1052116), (24, 789087), (26, 728388), (36, 526058), (39, 485592), (52, 364194), (72, 263029), (78, 242796), (104, 182097), (117, 161864), (156, 121398), (234, 80932), (312, 60699), (468, 40466), (936, 20233)]