21016449

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:314

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 11239551

約数列:

[1, 3, 9, 27, 59, 79, 167, 177, 237, 501, 531, 711, 1503, 1593, 2133, 4509, 4661, 9853, 13193, 13983, 29559, 39579, 41949, 88677, 118737, 125847, 266031, 356211, 778387, 2335161, 7005483, 21016449]

約数ペア:

[(1, 21016449), (3, 7005483), (9, 2335161), (27, 778387), (59, 356211), (79, 266031), (167, 125847), (177, 118737), (237, 88677), (501, 41949), (531, 39579), (711, 29559), (1503, 13983), (1593, 13193), (2133, 9853), (4509, 4661)]