28389843

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:208

約数の個数: 36

約数和(自身を含む): 43996680

約数和(自身を除く): 15606837

約数列:

[1, 3, 9, 23, 67, 69, 89, 201, 207, 267, 529, 603, 801, 1541, 1587, 2047, 4623, 4761, 5963, 6141, 13869, 17889, 18423, 35443, 47081, 53667, 106329, 137149, 141243, 318987, 411447, 423729, 1234341, 3154427, 9463281, 28389843]

約数ペア:

[(1, 28389843), (3, 9463281), (9, 3154427), (23, 1234341), (67, 423729), (69, 411447), (89, 318987), (201, 141243), (207, 137149), (267, 106329), (529, 53667), (603, 47081), (801, 35443), (1541, 18423), (1587, 17889), (2047, 13869), (4623, 6141), (4761, 5963)]