21942328

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{271}}^1\times {\mathrm{349}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 42840000

約数和(自身を除く): 20897672

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 271, 349, 542, 698, 1084, 1396, 2168, 2792, 7859, 10121, 15718, 20242, 31436, 40484, 62872, 80968, 94579, 189158, 378316, 756632, 2742791, 5485582, 10971164, 21942328]

約数ペア:

[(1, 21942328), (2, 10971164), (4, 5485582), (8, 2742791), (29, 756632), (58, 378316), (116, 189158), (232, 94579), (271, 80968), (349, 62872), (542, 40484), (698, 31436), (1084, 20242), (1396, 15718), (2168, 10121), (2792, 7859)]