71919981

素因数分解:

$3^5\times 7^1\times {\mathrm{42281}}^1$

素因数の和:42303

約数の個数: 24

約数和(自身を含む): 123125184

約数和(自身を除く): 51205203

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 42281, 126843, 295967, 380529, 887901, 1141587, 2663703, 3424761, 7991109, 10274283, 23973327, 71919981]

約数ペア:

[(1, 71919981), (3, 23973327), (7, 10274283), (9, 7991109), (21, 3424761), (27, 2663703), (63, 1141587), (81, 887901), (189, 380529), (243, 295967), (567, 126843), (1701, 42281)]