21278036

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{17791}}^1$

素因数の和:17831

約数の個数: 24

約数和(自身を含む): 41846784

約数和(自身を除く): 20568748

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 299, 598, 1196, 17791, 35582, 71164, 231283, 409193, 462566, 818386, 925132, 1636772, 5319509, 10639018, 21278036]

約数ペア:

[(1, 21278036), (2, 10639018), (4, 5319509), (13, 1636772), (23, 925132), (26, 818386), (46, 462566), (52, 409193), (92, 231283), (299, 71164), (598, 35582), (1196, 17791)]