20783028

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{617}}^1$

素因数の和:1032

約数の個数: 48

約数和(自身を含む): 55649664

約数和(自身を除く): 34866636

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 401, 617, 802, 1203, 1234, 1604, 1851, 2406, 2468, 2807, 3702, 4319, 4812, 5614, 7404, 8421, 8638, 11228, 12957, 16842, 17276, 25914, 33684, 51828, 247417, 494834, 742251, 989668, 1484502, 1731919, 2969004, 3463838, 5195757, 6927676, 10391514, 20783028]

約数ペア:

[(1, 20783028), (2, 10391514), (3, 6927676), (4, 5195757), (6, 3463838), (7, 2969004), (12, 1731919), (14, 1484502), (21, 989668), (28, 742251), (42, 494834), (84, 247417), (401, 51828), (617, 33684), (802, 25914), (1203, 17276), (1234, 16842), (1604, 12957), (1851, 11228), (2406, 8638), (2468, 8421), (2807, 7404), (3702, 5614), (4319, 4812)]