21639564

素因数分解:

$2^2\times 3^2\times {\mathrm{401}}^1\times {\mathrm{1499}}^1$

素因数の和:1910

約数の個数: 36

約数和(自身を含む): 54873000

約数和(自身を除く): 33233436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 401, 802, 1203, 1499, 1604, 2406, 2998, 3609, 4497, 4812, 5996, 7218, 8994, 13491, 14436, 17988, 26982, 53964, 601099, 1202198, 1803297, 2404396, 3606594, 5409891, 7213188, 10819782, 21639564]

約数ペア:

[(1, 21639564), (2, 10819782), (3, 7213188), (4, 5409891), (6, 3606594), (9, 2404396), (12, 1803297), (18, 1202198), (36, 601099), (401, 53964), (802, 26982), (1203, 17988), (1499, 14436), (1604, 13491), (2406, 8994), (2998, 7218), (3609, 5996), (4497, 4812)]