19989613

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{1669}}^1$

素因数の和:1764

約数の個数: 16

約数和(自身を含む): 24048000

約数和(自身を除く): 4058387

約数列:

[1, 7, 29, 59, 203, 413, 1669, 1711, 11683, 11977, 48401, 98471, 338807, 689297, 2855659, 19989613]

約数ペア:

[(1, 19989613), (7, 2855659), (29, 689297), (59, 338807), (203, 98471), (413, 48401), (1669, 11977), (1711, 11683)]