20720466

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1213}}^1$

素因数の和:1307

約数の個数: 48

約数和(自身を含む): 49050456

約数和(自身を除く): 28329990

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 73, 78, 117, 146, 219, 234, 438, 657, 949, 1213, 1314, 1898, 2426, 2847, 3639, 5694, 7278, 8541, 10917, 15769, 17082, 21834, 31538, 47307, 88549, 94614, 141921, 177098, 265647, 283842, 531294, 796941, 1151137, 1593882, 2302274, 3453411, 6906822, 10360233, 20720466]

約数ペア:

[(1, 20720466), (2, 10360233), (3, 6906822), (6, 3453411), (9, 2302274), (13, 1593882), (18, 1151137), (26, 796941), (39, 531294), (73, 283842), (78, 265647), (117, 177098), (146, 141921), (219, 94614), (234, 88549), (438, 47307), (657, 31538), (949, 21834), (1213, 17082), (1314, 15769), (1898, 10917), (2426, 8541), (2847, 7278), (3639, 5694)]