8400105

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{2963}}^1$

素因数の和:2987

約数の個数: 40

約数和(自身を含む): 17214912

約数和(自身を除く): 8814807

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 2963, 8889, 14815, 20741, 26667, 44445, 62223, 80001, 103705, 133335, 186669, 240003, 311115, 400005, 560007, 933345, 1200015, 1680021, 2800035, 8400105]

約数ペア:

[(1, 8400105), (3, 2800035), (5, 1680021), (7, 1200015), (9, 933345), (15, 560007), (21, 400005), (27, 311115), (35, 240003), (45, 186669), (63, 133335), (81, 103705), (105, 80001), (135, 62223), (189, 44445), (315, 26667), (405, 20741), (567, 14815), (945, 8889), (2835, 2963)]