19678478

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{7013}}^1$

素因数の和:7099

約数の個数: 16

約数和(自身を含む): 31310496

約数和(自身を除く): 11632018

約数列:

[1, 2, 23, 46, 61, 122, 1403, 2806, 7013, 14026, 161299, 322598, 427793, 855586, 9839239, 19678478]

約数ペア:

[(1, 19678478), (2, 9839239), (23, 855586), (46, 427793), (61, 322598), (122, 161299), (1403, 14026), (2806, 7013)]