21686335

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 29756160

約数和(自身を除く): 8069825

約数列:

[1, 5, 11, 41, 55, 59, 163, 205, 295, 451, 649, 815, 1793, 2255, 2419, 3245, 6683, 8965, 9617, 12095, 26609, 33415, 48085, 73513, 105787, 133045, 367565, 394297, 528935, 1971485, 4337267, 21686335]

約数ペア:

[(1, 21686335), (5, 4337267), (11, 1971485), (41, 528935), (55, 394297), (59, 367565), (163, 133045), (205, 105787), (295, 73513), (451, 48085), (649, 33415), (815, 26609), (1793, 12095), (2255, 9617), (2419, 8965), (3245, 6683)]