18533745

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 35389440

約数和(自身を除く): 16855695

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 47, 69, 115, 127, 135, 141, 207, 235, 345, 381, 423, 621, 635, 705, 1035, 1081, 1143, 1269, 1905, 2115, 2921, 3105, 3243, 3429, 5405, 5715, 5969, 6345, 8763, 9729, 14605, 16215, 17145, 17907, 26289, 29187, 29845, 43815, 48645, 53721, 78867, 89535, 131445, 137287, 145935, 161163, 268605, 394335, 411861, 686435, 805815, 1235583, 2059305, 3706749, 6177915, 18533745]

約数ペア:

[(1, 18533745), (3, 6177915), (5, 3706749), (9, 2059305), (15, 1235583), (23, 805815), (27, 686435), (45, 411861), (47, 394335), (69, 268605), (115, 161163), (127, 145935), (135, 137287), (141, 131445), (207, 89535), (235, 78867), (345, 53721), (381, 48645), (423, 43815), (621, 29845), (635, 29187), (705, 26289), (1035, 17907), (1081, 17145), (1143, 16215), (1269, 14605), (1905, 9729), (2115, 8763), (2921, 6345), (3105, 5969), (3243, 5715), (3429, 5405)]