21582904

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{8963}}^1$

素因数の和:9019

約数の個数: 32

約数和(自身を含む): 47329920

約数和(自身を除く): 25747016

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 8963, 17926, 35852, 62741, 71704, 125482, 250964, 385409, 501928, 770818, 1541636, 2697863, 3083272, 5395726, 10791452, 21582904]

約数ペア:

[(1, 21582904), (2, 10791452), (4, 5395726), (7, 3083272), (8, 2697863), (14, 1541636), (28, 770818), (43, 501928), (56, 385409), (86, 250964), (172, 125482), (301, 71704), (344, 62741), (602, 35852), (1204, 17926), (2408, 8963)]