21998628

素因数分解:

$2^2\times 3^4\times {\mathrm{43}}^1\times {\mathrm{1579}}^1$

素因数の和:1638

約数の個数: 60

約数和(自身を含む): 58883440

約数和(自身を除く): 36884812

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 43, 54, 81, 86, 108, 129, 162, 172, 258, 324, 387, 516, 774, 1161, 1548, 1579, 2322, 3158, 3483, 4644, 4737, 6316, 6966, 9474, 13932, 14211, 18948, 28422, 42633, 56844, 67897, 85266, 127899, 135794, 170532, 203691, 255798, 271588, 407382, 511596, 611073, 814764, 1222146, 1833219, 2444292, 3666438, 5499657, 7332876, 10999314, 21998628]

約数ペア:

[(1, 21998628), (2, 10999314), (3, 7332876), (4, 5499657), (6, 3666438), (9, 2444292), (12, 1833219), (18, 1222146), (27, 814764), (36, 611073), (43, 511596), (54, 407382), (81, 271588), (86, 255798), (108, 203691), (129, 170532), (162, 135794), (172, 127899), (258, 85266), (324, 67897), (387, 56844), (516, 42633), (774, 28422), (1161, 18948), (1548, 14211), (1579, 13932), (2322, 9474), (3158, 6966), (3483, 6316), (4644, 4737)]