19427961

素因数分解:

$3^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{887}}^1$

素因数の和:1053

約数の個数: 24

約数和(自身を含む): 30369600

約数和(自身を除く): 10941639

約数列:

[1, 3, 7, 21, 49, 147, 149, 447, 887, 1043, 2661, 3129, 6209, 7301, 18627, 21903, 43463, 130389, 132163, 396489, 925141, 2775423, 6475987, 19427961]

約数ペア:

[(1, 19427961), (3, 6475987), (7, 2775423), (21, 925141), (49, 396489), (147, 132163), (149, 130389), (447, 43463), (887, 21903), (1043, 18627), (2661, 7301), (3129, 6209)]