18417872

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{461}}^1$

素因数の和:707

約数の個数: 40

約数和(自身を含む): 39184992

約数和(自身を除く): 20767120

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 227, 454, 461, 908, 922, 1816, 1844, 2497, 3632, 3688, 4994, 5071, 7376, 9988, 10142, 19976, 20284, 39952, 40568, 81136, 104647, 209294, 418588, 837176, 1151117, 1674352, 2302234, 4604468, 9208936, 18417872]

約数ペア:

[(1, 18417872), (2, 9208936), (4, 4604468), (8, 2302234), (11, 1674352), (16, 1151117), (22, 837176), (44, 418588), (88, 209294), (176, 104647), (227, 81136), (454, 40568), (461, 39952), (908, 20284), (922, 19976), (1816, 10142), (1844, 9988), (2497, 7376), (3632, 5071), (3688, 4994)]