28791495

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{13613}}^1$

素因数の和:13671

約数の個数: 24

約数和(自身を含む): 50970816

約数和(自身を除く): 22179321

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 13613, 40839, 68065, 122517, 204195, 612585, 639811, 1919433, 3199055, 5758299, 9597165, 28791495]

約数ペア:

[(1, 28791495), (3, 9597165), (5, 5758299), (9, 3199055), (15, 1919433), (45, 639811), (47, 612585), (141, 204195), (235, 122517), (423, 68065), (705, 40839), (2115, 13613)]