21285780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{354763}}^1$

素因数の和:354775

約数の個数: 24

約数和(自身を含む): 59600352

約数和(自身を除く): 38314572

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 354763, 709526, 1064289, 1419052, 1773815, 2128578, 3547630, 4257156, 5321445, 7095260, 10642890, 21285780]

約数ペア:

[(1, 21285780), (2, 10642890), (3, 7095260), (4, 5321445), (5, 4257156), (6, 3547630), (10, 2128578), (12, 1773815), (15, 1419052), (20, 1064289), (30, 709526), (60, 354763)]