19842445

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^2$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 28577664

約数和(自身を除く): 8735219

約数列:

[1, 5, 7, 23, 35, 115, 157, 161, 785, 805, 1099, 3611, 5495, 18055, 24649, 25277, 123245, 126385, 172543, 566927, 862715, 2834635, 3968489, 19842445]

約数ペア:

[(1, 19842445), (5, 3968489), (7, 2834635), (23, 862715), (35, 566927), (115, 172543), (157, 126385), (161, 123245), (785, 25277), (805, 24649), (1099, 18055), (3611, 5495)]