19875142

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{61}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 37685088

約数和(自身を除く): 17809946

約数列:

[1, 2, 7, 14, 17, 34, 37, 61, 74, 119, 122, 238, 259, 427, 518, 629, 854, 1037, 1258, 1369, 2074, 2257, 2738, 4403, 4514, 7259, 8806, 9583, 14518, 15799, 19166, 23273, 31598, 38369, 46546, 76738, 83509, 162911, 167018, 268583, 325822, 537166, 584563, 1169126, 1419653, 2839306, 9937571, 19875142]

約数ペア:

[(1, 19875142), (2, 9937571), (7, 2839306), (14, 1419653), (17, 1169126), (34, 584563), (37, 537166), (61, 325822), (74, 268583), (119, 167018), (122, 162911), (238, 83509), (259, 76738), (427, 46546), (518, 38369), (629, 31598), (854, 23273), (1037, 19166), (1258, 15799), (1369, 14518), (2074, 9583), (2257, 8806), (2738, 7259), (4403, 4514)]