19897864

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{18701}}^1$

素因数の和:18733

約数の個数: 32

約数和(自身を含む): 44884800

約数和(自身を除く): 24986936

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 18701, 37402, 74804, 130907, 149608, 261814, 355319, 523628, 710638, 1047256, 1421276, 2487233, 2842552, 4974466, 9948932, 19897864]

約数ペア:

[(1, 19897864), (2, 9948932), (4, 4974466), (7, 2842552), (8, 2487233), (14, 1421276), (19, 1047256), (28, 710638), (38, 523628), (56, 355319), (76, 261814), (133, 149608), (152, 130907), (266, 74804), (532, 37402), (1064, 18701)]