20213215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{1619}}^1$

素因数の和:1862

約数の個数: 16

約数和(自身を含む): 26593920

約数和(自身を除く): 6380705

約数列:

[1, 5, 11, 55, 227, 1135, 1619, 2497, 8095, 12485, 17809, 89045, 367513, 1837565, 4042643, 20213215]

約数ペア:

[(1, 20213215), (5, 4042643), (11, 1837565), (55, 367513), (227, 89045), (1135, 17809), (1619, 12485), (2497, 8095)]