28821331

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{12907}}^1$

素因数の和:12954

約数の個数: 16

約数和(自身を含む): 37175040

約数和(自身を除く): 8353709

約数列:

[1, 7, 11, 29, 77, 203, 319, 2233, 12907, 90349, 141977, 374303, 993839, 2620121, 4117333, 28821331]

約数ペア:

[(1, 28821331), (7, 4117333), (11, 2620121), (29, 993839), (77, 374303), (203, 141977), (319, 90349), (2233, 12907)]