19600245

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{2963}}^1$

素因数の和:2991

約数の個数: 48

約数和(自身を含む): 40547520

約数和(自身を除く): 20947275

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 735, 945, 1323, 2205, 2963, 6615, 8889, 14815, 20741, 26667, 44445, 62223, 80001, 103705, 133335, 145187, 186669, 311115, 400005, 435561, 560007, 725935, 933345, 1306683, 2177805, 2800035, 3920049, 6533415, 19600245]

約数ペア:

[(1, 19600245), (3, 6533415), (5, 3920049), (7, 2800035), (9, 2177805), (15, 1306683), (21, 933345), (27, 725935), (35, 560007), (45, 435561), (49, 400005), (63, 311115), (105, 186669), (135, 145187), (147, 133335), (189, 103705), (245, 80001), (315, 62223), (441, 44445), (735, 26667), (945, 20741), (1323, 14815), (2205, 8889), (2963, 6615)]