20451465

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{7703}}^1$

素因数の和:7773

約数の個数: 24

約数和(自身を含む): 36054720

約数和(自身を除く): 15603255

約数列:

[1, 3, 5, 9, 15, 45, 59, 177, 295, 531, 885, 2655, 7703, 23109, 38515, 69327, 115545, 346635, 454477, 1363431, 2272385, 4090293, 6817155, 20451465]

約数ペア:

[(1, 20451465), (3, 6817155), (5, 4090293), (9, 2272385), (15, 1363431), (45, 454477), (59, 346635), (177, 115545), (295, 69327), (531, 38515), (885, 23109), (2655, 7703)]