18894736

素因数分解:

$2^4\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2311}}^1$

素因数の和:2399

約数の個数: 40

約数和(自身を含む): 42429824

約数和(自身を除く): 23535088

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 73, 112, 146, 292, 511, 584, 1022, 1168, 2044, 2311, 4088, 4622, 8176, 9244, 16177, 18488, 32354, 36976, 64708, 129416, 168703, 258832, 337406, 674812, 1180921, 1349624, 2361842, 2699248, 4723684, 9447368, 18894736]

約数ペア:

[(1, 18894736), (2, 9447368), (4, 4723684), (7, 2699248), (8, 2361842), (14, 1349624), (16, 1180921), (28, 674812), (56, 337406), (73, 258832), (112, 168703), (146, 129416), (292, 64708), (511, 36976), (584, 32354), (1022, 18488), (1168, 16177), (2044, 9244), (2311, 8176), (4088, 4622)]