19156806

素因数分解:

$2^1\times 3^2\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{239}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 42943680

約数和(自身を除く): 23786874

約数列:

[1, 2, 3, 6, 9, 18, 61, 73, 122, 146, 183, 219, 239, 366, 438, 478, 549, 657, 717, 1098, 1314, 1434, 2151, 4302, 4453, 8906, 13359, 14579, 17447, 26718, 29158, 34894, 40077, 43737, 52341, 80154, 87474, 104682, 131211, 157023, 262422, 314046, 1064267, 2128534, 3192801, 6385602, 9578403, 19156806]

約数ペア:

[(1, 19156806), (2, 9578403), (3, 6385602), (6, 3192801), (9, 2128534), (18, 1064267), (61, 314046), (73, 262422), (122, 157023), (146, 131211), (183, 104682), (219, 87474), (239, 80154), (366, 52341), (438, 43737), (478, 40077), (549, 34894), (657, 29158), (717, 26718), (1098, 17447), (1314, 14579), (1434, 13359), (2151, 8906), (4302, 4453)]