21651080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49207}}^1$

素因数の和:49229

約数の個数: 32

約数和(自身を含む): 53144640

約数和(自身を除く): 31493560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49207, 98414, 196828, 246035, 393656, 492070, 541277, 984140, 1082554, 1968280, 2165108, 2706385, 4330216, 5412770, 10825540, 21651080]

約数ペア:

[(1, 21651080), (2, 10825540), (4, 5412770), (5, 4330216), (8, 2706385), (10, 2165108), (11, 1968280), (20, 1082554), (22, 984140), (40, 541277), (44, 492070), (55, 393656), (88, 246035), (110, 196828), (220, 98414), (440, 49207)]