20691801

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{353}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 33304320

約数和(自身を除く): 12612519

約数列:

[1, 3, 9, 13, 27, 39, 117, 167, 351, 353, 501, 1059, 1503, 2171, 3177, 4509, 4589, 6513, 9531, 13767, 19539, 41301, 58617, 58951, 123903, 176853, 530559, 766363, 1591677, 2299089, 6897267, 20691801]

約数ペア:

[(1, 20691801), (3, 6897267), (9, 2299089), (13, 1591677), (27, 766363), (39, 530559), (117, 176853), (167, 123903), (351, 58951), (353, 58617), (501, 41301), (1059, 19539), (1503, 13767), (2171, 9531), (3177, 6513), (4509, 4589)]