19825778

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1021}}^1$

素因数の和:1122

約数の個数: 32

約数和(自身を含む): 36301440

約数和(自身を除く): 16475662

約数列:

[1, 2, 7, 14, 19, 38, 73, 133, 146, 266, 511, 1021, 1022, 1387, 2042, 2774, 7147, 9709, 14294, 19399, 19418, 38798, 74533, 135793, 149066, 271586, 521731, 1043462, 1416127, 2832254, 9912889, 19825778]

約数ペア:

[(1, 19825778), (2, 9912889), (7, 2832254), (14, 1416127), (19, 1043462), (38, 521731), (73, 271586), (133, 149066), (146, 135793), (266, 74533), (511, 38798), (1021, 19418), (1022, 19399), (1387, 14294), (2042, 9709), (2774, 7147)]