18405856

素因数分解:

$2^5\times 7^1\times {\mathrm{127}}^1\times {\mathrm{647}}^1$

素因数の和:791

約数の個数: 48

約数和(自身を含む): 41803776

約数和(自身を除く): 23397920

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 127, 224, 254, 508, 647, 889, 1016, 1294, 1778, 2032, 2588, 3556, 4064, 4529, 5176, 7112, 9058, 10352, 14224, 18116, 20704, 28448, 36232, 72464, 82169, 144928, 164338, 328676, 575183, 657352, 1150366, 1314704, 2300732, 2629408, 4601464, 9202928, 18405856]

約数ペア:

[(1, 18405856), (2, 9202928), (4, 4601464), (7, 2629408), (8, 2300732), (14, 1314704), (16, 1150366), (28, 657352), (32, 575183), (56, 328676), (112, 164338), (127, 144928), (224, 82169), (254, 72464), (508, 36232), (647, 28448), (889, 20704), (1016, 18116), (1294, 14224), (1778, 10352), (2032, 9058), (2588, 7112), (3556, 5176), (4064, 4529)]