19195554

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{599}}^1$

素因数の和:727

約数の個数: 48

約数和(自身を含む): 45144000

約数和(自身を除く): 25948446

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 109, 147, 218, 294, 327, 599, 654, 763, 1198, 1526, 1797, 2289, 3594, 4193, 4578, 5341, 8386, 10682, 12579, 16023, 25158, 29351, 32046, 58702, 65291, 88053, 130582, 176106, 195873, 391746, 457037, 914074, 1371111, 2742222, 3199259, 6398518, 9597777, 19195554]

約数ペア:

[(1, 19195554), (2, 9597777), (3, 6398518), (6, 3199259), (7, 2742222), (14, 1371111), (21, 914074), (42, 457037), (49, 391746), (98, 195873), (109, 176106), (147, 130582), (218, 88053), (294, 65291), (327, 58702), (599, 32046), (654, 29351), (763, 25158), (1198, 16023), (1526, 12579), (1797, 10682), (2289, 8386), (3594, 5341), (4193, 4578)]