28385415

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{13421}}^1$

素因数の和:13479

約数の個数: 24

約数和(自身を含む): 50251968

約数和(自身を除く): 21866553

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 13421, 40263, 67105, 120789, 201315, 603945, 630787, 1892361, 3153935, 5677083, 9461805, 28385415]

約数ペア:

[(1, 28385415), (3, 9461805), (5, 5677083), (9, 3153935), (15, 1892361), (45, 630787), (47, 603945), (141, 201315), (235, 120789), (423, 67105), (705, 40263), (2115, 13421)]