21796627870

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53162507}}^1$

素因数の和:53162555

約数の個数: 16

約数和(自身を含む): 40190856048

約数和(自身を除く): 18394228178

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 53162507, 106325014, 265812535, 531625070, 2179662787, 4359325574, 10898313935, 21796627870]

約数ペア:

[(1, 21796627870), (2, 10898313935), (5, 4359325574), (10, 2179662787), (41, 531625070), (82, 265812535), (205, 106325014), (410, 53162507)]