20573409

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^2\times {\mathrm{97}}^1$

素因数の和:241

約数の個数: 24

約数和(自身を含む): 29658720

約数和(自身を除く): 9085311

約数列:

[1, 3, 19, 57, 61, 97, 183, 291, 1159, 1843, 3477, 3721, 5529, 5917, 11163, 17751, 70699, 112423, 212097, 337269, 360937, 1082811, 6857803, 20573409]

約数ペア:

[(1, 20573409), (3, 6857803), (19, 1082811), (57, 360937), (61, 337269), (97, 212097), (183, 112423), (291, 70699), (1159, 17751), (1843, 11163), (3477, 5917), (3721, 5529)]