21259386

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{233}}^1$

素因数の和:415

約数の個数: 48

約数和(自身を含む): 47856744

約数和(自身を除く): 26597358

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 137, 222, 233, 274, 333, 411, 466, 666, 699, 822, 1233, 1398, 2097, 2466, 4194, 5069, 8621, 10138, 15207, 17242, 25863, 30414, 31921, 45621, 51726, 63842, 77589, 91242, 95763, 155178, 191526, 287289, 574578, 1181077, 2362154, 3543231, 7086462, 10629693, 21259386]

約数ペア:

[(1, 21259386), (2, 10629693), (3, 7086462), (6, 3543231), (9, 2362154), (18, 1181077), (37, 574578), (74, 287289), (111, 191526), (137, 155178), (222, 95763), (233, 91242), (274, 77589), (333, 63842), (411, 51726), (466, 45621), (666, 31921), (699, 30414), (822, 25863), (1233, 17242), (1398, 15207), (2097, 10138), (2466, 8621), (4194, 5069)]