20764422

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{739}}^1$

素因数の和:977

約数の個数: 48

約数和(自身を含む): 51717120

約数和(自身を除く): 30952698

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 223, 446, 669, 739, 1338, 1478, 1561, 2007, 2217, 3122, 4014, 4434, 4683, 5173, 6651, 9366, 10346, 13302, 14049, 15519, 28098, 31038, 46557, 93114, 164797, 329594, 494391, 988782, 1153579, 1483173, 2307158, 2966346, 3460737, 6921474, 10382211, 20764422]

約数ペア:

[(1, 20764422), (2, 10382211), (3, 6921474), (6, 3460737), (7, 2966346), (9, 2307158), (14, 1483173), (18, 1153579), (21, 988782), (42, 494391), (63, 329594), (126, 164797), (223, 93114), (446, 46557), (669, 31038), (739, 28098), (1338, 15519), (1478, 14049), (1561, 13302), (2007, 10346), (2217, 9366), (3122, 6651), (4014, 5173), (4434, 4683)]