18577748

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 38949120

約数和(自身を除く): 20371372

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 137, 167, 203, 274, 334, 406, 548, 668, 812, 959, 1169, 1918, 2338, 3836, 3973, 4676, 4843, 7946, 9686, 15892, 19372, 22879, 27811, 33901, 45758, 55622, 67802, 91516, 111244, 135604, 160153, 320306, 640612, 663491, 1326982, 2653964, 4644437, 9288874, 18577748]

約数ペア:

[(1, 18577748), (2, 9288874), (4, 4644437), (7, 2653964), (14, 1326982), (28, 663491), (29, 640612), (58, 320306), (116, 160153), (137, 135604), (167, 111244), (203, 91516), (274, 67802), (334, 55622), (406, 45758), (548, 33901), (668, 27811), (812, 22879), (959, 19372), (1169, 15892), (1918, 9686), (2338, 7946), (3836, 4843), (3973, 4676)]