18943812

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 50633856

約数和(自身を除く): 31690044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 137, 138, 167, 207, 274, 276, 334, 411, 414, 501, 548, 668, 822, 828, 1002, 1233, 1503, 1644, 2004, 2466, 3006, 3151, 3841, 4932, 6012, 6302, 7682, 9453, 11523, 12604, 15364, 18906, 22879, 23046, 28359, 34569, 37812, 45758, 46092, 56718, 68637, 69138, 91516, 113436, 137274, 138276, 205911, 274548, 411822, 526217, 823644, 1052434, 1578651, 2104868, 3157302, 4735953, 6314604, 9471906, 18943812]

約数ペア:

[(1, 18943812), (2, 9471906), (3, 6314604), (4, 4735953), (6, 3157302), (9, 2104868), (12, 1578651), (18, 1052434), (23, 823644), (36, 526217), (46, 411822), (69, 274548), (92, 205911), (137, 138276), (138, 137274), (167, 113436), (207, 91516), (274, 69138), (276, 68637), (334, 56718), (411, 46092), (414, 45758), (501, 37812), (548, 34569), (668, 28359), (822, 23046), (828, 22879), (1002, 18906), (1233, 15364), (1503, 12604), (1644, 11523), (2004, 9453), (2466, 7682), (3006, 6302), (3151, 6012), (3841, 4932)]