20163213

素因数分解:

$3^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{1181}}^1$

素因数の和:1465

約数の個数: 24

約数和(自身を含む): 33436416

約数和(自身を除く): 13273203

約数列:

[1, 3, 7, 9, 21, 63, 271, 813, 1181, 1897, 2439, 3543, 5691, 8267, 10629, 17073, 24801, 74403, 320051, 960153, 2240357, 2880459, 6721071, 20163213]

約数ペア:

[(1, 20163213), (3, 6721071), (7, 2880459), (9, 2240357), (21, 960153), (63, 320051), (271, 74403), (813, 24801), (1181, 17073), (1897, 10629), (2439, 8267), (3543, 5691)]