20917656

素因数分解:

$2^3\times 3^3\times {\mathrm{113}}^1\times {\mathrm{857}}^1$

素因数の和:985

約数の個数: 64

約数和(自身を含む): 58687200

約数和(自身を除く): 37769544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 113, 216, 226, 339, 452, 678, 857, 904, 1017, 1356, 1714, 2034, 2571, 2712, 3051, 3428, 4068, 5142, 6102, 6856, 7713, 8136, 10284, 12204, 15426, 20568, 23139, 24408, 30852, 46278, 61704, 92556, 96841, 185112, 193682, 290523, 387364, 581046, 774728, 871569, 1162092, 1743138, 2324184, 2614707, 3486276, 5229414, 6972552, 10458828, 20917656]

約数ペア:

[(1, 20917656), (2, 10458828), (3, 6972552), (4, 5229414), (6, 3486276), (8, 2614707), (9, 2324184), (12, 1743138), (18, 1162092), (24, 871569), (27, 774728), (36, 581046), (54, 387364), (72, 290523), (108, 193682), (113, 185112), (216, 96841), (226, 92556), (339, 61704), (452, 46278), (678, 30852), (857, 24408), (904, 23139), (1017, 20568), (1356, 15426), (1714, 12204), (2034, 10284), (2571, 8136), (2712, 7713), (3051, 6856), (3428, 6102), (4068, 5142)]