20616309

素因数分解:

$3^3\times 7^2\times {\mathrm{15583}}^1$

素因数の和:15606

約数の個数: 24

約数和(自身を含む): 35531520

約数和(自身を除く): 14915211

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15583, 46749, 109081, 140247, 327243, 420741, 763567, 981729, 2290701, 2945187, 6872103, 20616309]

約数ペア:

[(1, 20616309), (3, 6872103), (7, 2945187), (9, 2290701), (21, 981729), (27, 763567), (49, 420741), (63, 327243), (147, 140247), (189, 109081), (441, 46749), (1323, 15583)]