21092138

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{4463}}^1$

素因数の和:4621

約数の個数: 16

約数和(自身を含む): 33747840

約数和(自身を除く): 12655702

約数列:

[1, 2, 17, 34, 139, 278, 2363, 4463, 4726, 8926, 75871, 151742, 620357, 1240714, 10546069, 21092138]

約数ペア:

[(1, 21092138), (2, 10546069), (17, 1240714), (34, 620357), (139, 151742), (278, 75871), (2363, 8926), (4463, 4726)]