19223337

素因数分解:

$3^1\times 7^2\times {\mathrm{251}}^1\times {\mathrm{521}}^1$

素因数の和:789

約数の個数: 24

約数和(自身を含む): 29992032

約数和(自身を除く): 10768695

約数列:

[1, 3, 7, 21, 49, 147, 251, 521, 753, 1563, 1757, 3647, 5271, 10941, 12299, 25529, 36897, 76587, 130771, 392313, 915397, 2746191, 6407779, 19223337]

約数ペア:

[(1, 19223337), (3, 6407779), (7, 2746191), (21, 915397), (49, 392313), (147, 130771), (251, 76587), (521, 36897), (753, 25529), (1563, 12299), (1757, 10941), (3647, 5271)]