21017235

素因数分解:

$3^1\times 5^1\times {\mathrm{941}}^1\times {\mathrm{1489}}^1$

素因数の和:2438

約数の個数: 16

約数和(自身を含む): 33685920

約数和(自身を除く): 12668685

約数列:

[1, 3, 5, 15, 941, 1489, 2823, 4467, 4705, 7445, 14115, 22335, 1401149, 4203447, 7005745, 21017235]

約数ペア:

[(1, 21017235), (3, 7005745), (5, 4203447), (15, 1401149), (941, 22335), (1489, 14115), (2823, 7445), (4467, 4705)]