19220397

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{2467}}^1$

素因数の和:2537

約数の個数: 24

約数和(自身を含む): 30386016

約数和(自身を除く): 11165619

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 371, 1113, 2467, 2597, 7401, 7791, 17269, 51807, 120883, 130751, 362649, 392253, 915257, 2745771, 6406799, 19220397]

約数ペア:

[(1, 19220397), (3, 6406799), (7, 2745771), (21, 915257), (49, 392253), (53, 362649), (147, 130751), (159, 120883), (371, 51807), (1113, 17269), (2467, 7791), (2597, 7401)]