28431945

素因数分解:

$3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4481}}^1$

素因数の和:4542

約数の個数: 32

約数和(自身を含む): 51632640

約数和(自身を除く): 23200695

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 135, 141, 235, 423, 705, 1269, 2115, 4481, 6345, 13443, 22405, 40329, 67215, 120987, 201645, 210607, 604935, 631821, 1053035, 1895463, 3159105, 5686389, 9477315, 28431945]

約数ペア:

[(1, 28431945), (3, 9477315), (5, 5686389), (9, 3159105), (15, 1895463), (27, 1053035), (45, 631821), (47, 604935), (135, 210607), (141, 201645), (235, 120987), (423, 67215), (705, 40329), (1269, 22405), (2115, 13443), (4481, 6345)]