21487308

素因数分解:

$2^2\times 3^1\times {\mathrm{1153}}^1\times {\mathrm{1553}}^1$

素因数の和:2713

約数の個数: 24

約数和(自身を含む): 50212848

約数和(自身を除く): 28725540

約数列:

[1, 2, 3, 4, 6, 12, 1153, 1553, 2306, 3106, 3459, 4612, 4659, 6212, 6918, 9318, 13836, 18636, 1790609, 3581218, 5371827, 7162436, 10743654, 21487308]

約数ペア:

[(1, 21487308), (2, 10743654), (3, 7162436), (4, 5371827), (6, 3581218), (12, 1790609), (1153, 18636), (1553, 13836), (2306, 9318), (3106, 6918), (3459, 6212), (4612, 4659)]