19223631

素因数分解:

$3^2\times 7^2\times {\mathrm{43591}}^1$

素因数の和:43611

約数の個数: 18

約数和(自身を含む): 32301672

約数和(自身を除く): 13078041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 43591, 130773, 305137, 392319, 915411, 2135959, 2746233, 6407877, 19223631]

約数ペア:

[(1, 19223631), (3, 6407877), (7, 2746233), (9, 2135959), (21, 915411), (49, 392319), (63, 305137), (147, 130773), (441, 43591)]