209804498

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{90511}}^1$

素因数の和:90593

約数の個数: 16

約数和(自身を含む): 336704640

約数和(自身を除く): 126900142

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 90511, 181022, 1719709, 3439418, 5521171, 11042342, 104902249, 209804498]

約数ペア:

[(1, 209804498), (2, 104902249), (19, 11042342), (38, 5521171), (61, 3439418), (122, 1719709), (1159, 181022), (2318, 90511)]