20804706

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1327}}^1$

素因数の和:1415

約数の個数: 48

約数和(自身を含む): 49305984

約数和(自身を除く): 28501278

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 67, 78, 117, 134, 201, 234, 402, 603, 871, 1206, 1327, 1742, 2613, 2654, 3981, 5226, 7839, 7962, 11943, 15678, 17251, 23886, 34502, 51753, 88909, 103506, 155259, 177818, 266727, 310518, 533454, 800181, 1155817, 1600362, 2311634, 3467451, 6934902, 10402353, 20804706]

約数ペア:

[(1, 20804706), (2, 10402353), (3, 6934902), (6, 3467451), (9, 2311634), (13, 1600362), (18, 1155817), (26, 800181), (39, 533454), (67, 310518), (78, 266727), (117, 177818), (134, 155259), (201, 103506), (234, 88909), (402, 51753), (603, 34502), (871, 23886), (1206, 17251), (1327, 15678), (1742, 11943), (2613, 7962), (2654, 7839), (3981, 5226)]