28161081

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{80231}}^1$

素因数の和:80253

約数の個数: 16

約数和(自身を含む): 44929920

約数和(自身を除く): 16768839

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 80231, 240693, 722079, 1043003, 2166237, 3129009, 9387027, 28161081]

約数ペア:

[(1, 28161081), (3, 9387027), (9, 3129009), (13, 2166237), (27, 1043003), (39, 722079), (117, 240693), (351, 80231)]