21019080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1637}}^1$

素因数の和:1758

約数の個数: 64

約数和(自身を含む): 63685440

約数和(自身を除く): 42666360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 107, 120, 214, 321, 428, 535, 642, 856, 1070, 1284, 1605, 1637, 2140, 2568, 3210, 3274, 4280, 4911, 6420, 6548, 8185, 9822, 12840, 13096, 16370, 19644, 24555, 32740, 39288, 49110, 65480, 98220, 175159, 196440, 350318, 525477, 700636, 875795, 1050954, 1401272, 1751590, 2101908, 2627385, 3503180, 4203816, 5254770, 7006360, 10509540, 21019080]

約数ペア:

[(1, 21019080), (2, 10509540), (3, 7006360), (4, 5254770), (5, 4203816), (6, 3503180), (8, 2627385), (10, 2101908), (12, 1751590), (15, 1401272), (20, 1050954), (24, 875795), (30, 700636), (40, 525477), (60, 350318), (107, 196440), (120, 175159), (214, 98220), (321, 65480), (428, 49110), (535, 39288), (642, 32740), (856, 24555), (1070, 19644), (1284, 16370), (1605, 13096), (1637, 12840), (2140, 9822), (2568, 8185), (3210, 6548), (3274, 6420), (4280, 4911)]