18537318

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 41932800

約数和(自身を除く): 23395482

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 139, 186, 239, 278, 279, 417, 478, 558, 717, 834, 1251, 1434, 2151, 2502, 4302, 4309, 7409, 8618, 12927, 14818, 22227, 25854, 33221, 38781, 44454, 66442, 66681, 77562, 99663, 133362, 199326, 298989, 597978, 1029851, 2059702, 3089553, 6179106, 9268659, 18537318]

約数ペア:

[(1, 18537318), (2, 9268659), (3, 6179106), (6, 3089553), (9, 2059702), (18, 1029851), (31, 597978), (62, 298989), (93, 199326), (139, 133362), (186, 99663), (239, 77562), (278, 66681), (279, 66442), (417, 44454), (478, 38781), (558, 33221), (717, 25854), (834, 22227), (1251, 14818), (1434, 12927), (2151, 8618), (2502, 7409), (4302, 4309)]