21961251

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{8161}}^1$

素因数の和:8203

約数の個数: 24

約数和(自身を含む): 35651616

約数和(自身を除く): 13690365

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 8161, 24483, 73449, 106093, 187703, 318279, 563109, 954837, 1689327, 2440139, 7320417, 21961251]

約数ペア:

[(1, 21961251), (3, 7320417), (9, 2440139), (13, 1689327), (23, 954837), (39, 563109), (69, 318279), (117, 187703), (207, 106093), (299, 73449), (897, 24483), (2691, 8161)]