19723735

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{349}}^1$

素因数の和:570

約数の個数: 16

約数和(自身を含む): 24192000

約数和(自身を除く): 4468265

約数列:

[1, 5, 89, 127, 349, 445, 635, 1745, 11303, 31061, 44323, 56515, 155305, 221615, 3944747, 19723735]

約数ペア:

[(1, 19723735), (5, 3944747), (89, 221615), (127, 155305), (349, 56515), (445, 44323), (635, 31061), (1745, 11303)]