20686266

素因数分解:

$2^1\times 3^4\times {\mathrm{149}}^1\times {\mathrm{857}}^1$

素因数の和:1020

約数の個数: 40

約数和(自身を含む): 46718100

約数和(自身を除く): 26031834

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 149, 162, 298, 447, 857, 894, 1341, 1714, 2571, 2682, 4023, 5142, 7713, 8046, 12069, 15426, 23139, 24138, 46278, 69417, 127693, 138834, 255386, 383079, 766158, 1149237, 2298474, 3447711, 6895422, 10343133, 20686266]

約数ペア:

[(1, 20686266), (2, 10343133), (3, 6895422), (6, 3447711), (9, 2298474), (18, 1149237), (27, 766158), (54, 383079), (81, 255386), (149, 138834), (162, 127693), (298, 69417), (447, 46278), (857, 24138), (894, 23139), (1341, 15426), (1714, 12069), (2571, 8046), (2682, 7713), (4023, 5142)]