21392829

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{11483}}^1$

素因数の和:11518

約数の個数: 20

約数和(自身を含む): 33349536

約数和(自身を除く): 11956707

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 11483, 34449, 103347, 264109, 310041, 792327, 930123, 2376981, 7130943, 21392829]

約数ペア:

[(1, 21392829), (3, 7130943), (9, 2376981), (23, 930123), (27, 792327), (69, 310041), (81, 264109), (207, 103347), (621, 34449), (1863, 11483)]