19738945

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{4639}}^1$

素因数の和:4704

約数の個数: 16

約数和(自身を含む): 25390080

約数和(自身を除く): 5651135

約数列:

[1, 5, 23, 37, 115, 185, 851, 4255, 4639, 23195, 106697, 171643, 533485, 858215, 3947789, 19738945]

約数ペア:

[(1, 19738945), (5, 3947789), (23, 858215), (37, 533485), (115, 171643), (185, 106697), (851, 23195), (4255, 4639)]