213291265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{1531}}^1$

素因数の和:1713

約数の個数: 32

約数和(自身を含む): 297820800

約数和(自身を除く): 84529535

約数列:

[1, 5, 11, 17, 55, 85, 149, 187, 745, 935, 1531, 1639, 2533, 7655, 8195, 12665, 16841, 26027, 27863, 84205, 130135, 139315, 228119, 286297, 1140595, 1431485, 2509309, 3878023, 12546545, 19390115, 42658253, 213291265]

約数ペア:

[(1, 213291265), (5, 42658253), (11, 19390115), (17, 12546545), (55, 3878023), (85, 2509309), (149, 1431485), (187, 1140595), (745, 286297), (935, 228119), (1531, 139315), (1639, 130135), (2533, 84205), (7655, 27863), (8195, 26027), (12665, 16841)]