201721125

素因数分解:

$3^1\times 5^3\times {\mathrm{83}}^1\times {\mathrm{6481}}^1$

素因数の和:6582

約数の個数: 32

約数和(自身を含む): 339760512

約数和(自身を除く): 138039387

約数列:

[1, 3, 5, 15, 25, 75, 83, 125, 249, 375, 415, 1245, 2075, 6225, 6481, 10375, 19443, 31125, 32405, 97215, 162025, 486075, 537923, 810125, 1613769, 2430375, 2689615, 8068845, 13448075, 40344225, 67240375, 201721125]

約数ペア:

[(1, 201721125), (3, 67240375), (5, 40344225), (15, 13448075), (25, 8068845), (75, 2689615), (83, 2430375), (125, 1613769), (249, 810125), (375, 537923), (415, 486075), (1245, 162025), (2075, 97215), (6225, 32405), (6481, 31125), (10375, 19443)]