19934425

素因数分解:

$5^2\times 7^2\times {\mathrm{16273}}^1$

素因数の和:16297

約数の個数: 18

約数和(自身を含む): 28756158

約数和(自身を除く): 8821733

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 16273, 81365, 113911, 406825, 569555, 797377, 2847775, 3986885, 19934425]

約数ペア:

[(1, 19934425), (5, 3986885), (7, 2847775), (25, 797377), (35, 569555), (49, 406825), (175, 113911), (245, 81365), (1225, 16273)]