28405839

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1597}}^1$

素因数の和:1636

約数の個数: 36

約数和(自身を含む): 48457752

約数和(自身を除く): 20051913

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 121, 147, 231, 363, 539, 847, 1597, 1617, 2541, 4791, 5929, 11179, 17567, 17787, 33537, 52701, 78253, 122969, 193237, 234759, 368907, 579711, 860783, 1352659, 2582349, 4057977, 9468613, 28405839]

約数ペア:

[(1, 28405839), (3, 9468613), (7, 4057977), (11, 2582349), (21, 1352659), (33, 860783), (49, 579711), (77, 368907), (121, 234759), (147, 193237), (231, 122969), (363, 78253), (539, 52701), (847, 33537), (1597, 17787), (1617, 17567), (2541, 11179), (4791, 5929)]