21750255

素因数分解:

$3^3\times 5^1\times {\mathrm{367}}^1\times {\mathrm{439}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 38860800

約数和(自身を除く): 17110545

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 367, 439, 1101, 1317, 1835, 2195, 3303, 3951, 5505, 6585, 9909, 11853, 16515, 19755, 49545, 59265, 161113, 483339, 805565, 1450017, 2416695, 4350051, 7250085, 21750255]

約数ペア:

[(1, 21750255), (3, 7250085), (5, 4350051), (9, 2416695), (15, 1450017), (27, 805565), (45, 483339), (135, 161113), (367, 59265), (439, 49545), (1101, 19755), (1317, 16515), (1835, 11853), (2195, 9909), (3303, 6585), (3951, 5505)]