18720944

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{6257}}^1$

素因数の和:6293

約数の個数: 40

約数和(自身を含む): 41903568

約数和(自身を除く): 23182624

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 6257, 12514, 25028, 50056, 68827, 100112, 106369, 137654, 212738, 275308, 425476, 550616, 850952, 1101232, 1170059, 1701904, 2340118, 4680236, 9360472, 18720944]

約数ペア:

[(1, 18720944), (2, 9360472), (4, 4680236), (8, 2340118), (11, 1701904), (16, 1170059), (17, 1101232), (22, 850952), (34, 550616), (44, 425476), (68, 275308), (88, 212738), (136, 137654), (176, 106369), (187, 100112), (272, 68827), (374, 50056), (748, 25028), (1496, 12514), (2992, 6257)]