16721340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{278689}}^1$

素因数の和:278701

約数の個数: 24

約数和(自身を含む): 46819920

約数和(自身を除く): 30098580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 278689, 557378, 836067, 1114756, 1393445, 1672134, 2786890, 3344268, 4180335, 5573780, 8360670, 16721340]

約数ペア:

[(1, 16721340), (2, 8360670), (3, 5573780), (4, 4180335), (5, 3344268), (6, 2786890), (10, 1672134), (12, 1393445), (15, 1114756), (20, 836067), (30, 557378), (60, 278689)]