20910969

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1409}}^1$

素因数の和:1529

約数の個数: 24

約数和(自身を含む): 32334120

約数和(自身を除く): 11423151

約数列:

[1, 3, 9, 17, 51, 97, 153, 291, 873, 1409, 1649, 4227, 4947, 12681, 14841, 23953, 71859, 136673, 215577, 410019, 1230057, 2323441, 6970323, 20910969]

約数ペア:

[(1, 20910969), (3, 6970323), (9, 2323441), (17, 1230057), (51, 410019), (97, 215577), (153, 136673), (291, 71859), (873, 23953), (1409, 14841), (1649, 12681), (4227, 4947)]