19722213

素因数分解:

$3^2\times 7^1\times {\mathrm{367}}^1\times {\mathrm{853}}^1$

素因数の和:1233

約数の個数: 24

約数和(自身を含む): 32684288

約数和(自身を除く): 12962075

約数列:

[1, 3, 7, 9, 21, 63, 367, 853, 1101, 2559, 2569, 3303, 5971, 7677, 7707, 17913, 23121, 53739, 313051, 939153, 2191357, 2817459, 6574071, 19722213]

約数ペア:

[(1, 19722213), (3, 6574071), (7, 2817459), (9, 2191357), (21, 939153), (63, 313051), (367, 53739), (853, 23121), (1101, 17913), (2559, 7707), (2569, 7677), (3303, 5971)]