18677505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 37859328

約数和(自身を除く): 19181823

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 103, 105, 157, 165, 231, 309, 385, 471, 515, 721, 785, 1099, 1133, 1155, 1545, 1727, 2163, 2355, 3297, 3399, 3605, 5181, 5495, 5665, 7931, 8635, 10815, 12089, 16171, 16485, 16995, 23793, 25905, 36267, 39655, 48513, 60445, 80855, 113197, 118965, 177881, 181335, 242565, 339591, 533643, 565985, 889405, 1245167, 1697955, 2668215, 3735501, 6225835, 18677505]

約数ペア:

[(1, 18677505), (3, 6225835), (5, 3735501), (7, 2668215), (11, 1697955), (15, 1245167), (21, 889405), (33, 565985), (35, 533643), (55, 339591), (77, 242565), (103, 181335), (105, 177881), (157, 118965), (165, 113197), (231, 80855), (309, 60445), (385, 48513), (471, 39655), (515, 36267), (721, 25905), (785, 23793), (1099, 16995), (1133, 16485), (1155, 16171), (1545, 12089), (1727, 10815), (2163, 8635), (2355, 7931), (3297, 5665), (3399, 5495), (3605, 5181)]