19796813

素因数分解:

${\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{541}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 21749376

約数和(自身を除く): 1952563

約数列:

[1, 23, 37, 43, 541, 851, 989, 1591, 12443, 20017, 23263, 36593, 460391, 535049, 860731, 19796813]

約数ペア:

[(1, 19796813), (23, 860731), (37, 535049), (43, 460391), (541, 36593), (851, 23263), (989, 20017), (1591, 12443)]