9991661445

素因数分解:

$3^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{63421}}^1$

素因数の和:63827

約数の個数: 40

約数和(自身を含む): 17957305080

約数和(自身を除く): 7965643635

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 389, 405, 1167, 1945, 3501, 5835, 10503, 17505, 31509, 52515, 63421, 157545, 190263, 317105, 570789, 951315, 1712367, 2853945, 5137101, 8561835, 24670769, 25685505, 74012307, 123353845, 222036921, 370061535, 666110763, 1110184605, 1998332289, 3330553815, 9991661445]

約数ペア:

[(1, 9991661445), (3, 3330553815), (5, 1998332289), (9, 1110184605), (15, 666110763), (27, 370061535), (45, 222036921), (81, 123353845), (135, 74012307), (389, 25685505), (405, 24670769), (1167, 8561835), (1945, 5137101), (3501, 2853945), (5835, 1712367), (10503, 951315), (17505, 570789), (31509, 317105), (52515, 190263), (63421, 157545)]