21027045

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6343}}^1$

素因数の和:6381

約数の個数: 32

約数和(自身を含む): 38368512

約数和(自身を除く): 17341467

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 6343, 19029, 31715, 82459, 95145, 107831, 247377, 323493, 412295, 539155, 1236885, 1401803, 1617465, 4205409, 7009015, 21027045]

約数ペア:

[(1, 21027045), (3, 7009015), (5, 4205409), (13, 1617465), (15, 1401803), (17, 1236885), (39, 539155), (51, 412295), (65, 323493), (85, 247377), (195, 107831), (221, 95145), (255, 82459), (663, 31715), (1105, 19029), (3315, 6343)]