21220234

素因数分解:

$2^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{971}}^1$

素因数の和:1210

約数の個数: 24

約数和(自身を含む): 37231488

約数和(自身を除く): 16011254

約数列:

[1, 2, 7, 14, 49, 98, 223, 446, 971, 1561, 1942, 3122, 6797, 10927, 13594, 21854, 47579, 95158, 216533, 433066, 1515731, 3031462, 10610117, 21220234]

約数ペア:

[(1, 21220234), (2, 10610117), (7, 3031462), (14, 1515731), (49, 433066), (98, 216533), (223, 95158), (446, 47579), (971, 21854), (1561, 13594), (1942, 10927), (3122, 6797)]