21244270

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{16217}}^1$

素因数の和:16355

約数の個数: 16

約数和(自身を含む): 38533968

約数和(自身を除く): 17289698

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 16217, 32434, 81085, 162170, 2124427, 4248854, 10622135, 21244270]

約数ペア:

[(1, 21244270), (2, 10622135), (5, 4248854), (10, 2124427), (131, 162170), (262, 81085), (655, 32434), (1310, 16217)]