21917444

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{1613}}^1$

素因数の和:1739

約数の個数: 24

約数和(自身を含む): 39768960

約数和(自身を除く): 17851516

約数列:

[1, 2, 4, 43, 79, 86, 158, 172, 316, 1613, 3226, 3397, 6452, 6794, 13588, 69359, 127427, 138718, 254854, 277436, 509708, 5479361, 10958722, 21917444]

約数ペア:

[(1, 21917444), (2, 10958722), (4, 5479361), (43, 509708), (79, 277436), (86, 254854), (158, 138718), (172, 127427), (316, 69359), (1613, 13588), (3226, 6794), (3397, 6452)]