21853857

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{1187}}^1$

素因数の和:1245

約数の個数: 24

約数和(自身を含む): 32589216

約数和(自身を除く): 10735359

約数列:

[1, 3, 17, 19, 51, 57, 323, 361, 969, 1083, 1187, 3561, 6137, 18411, 20179, 22553, 60537, 67659, 383401, 428507, 1150203, 1285521, 7284619, 21853857]

約数ペア:

[(1, 21853857), (3, 7284619), (17, 1285521), (19, 1150203), (51, 428507), (57, 383401), (323, 67659), (361, 60537), (969, 22553), (1083, 20179), (1187, 18411), (3561, 6137)]