21392085

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9973}}^1$

素因数の和:10005

約数の個数: 32

約数和(自身を含む): 40215168

約数和(自身を除く): 18823083

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145, 9973, 29919, 49865, 109703, 129649, 149595, 329109, 388947, 548515, 648245, 1426139, 1645545, 1944735, 4278417, 7130695, 21392085]

約数ペア:

[(1, 21392085), (3, 7130695), (5, 4278417), (11, 1944735), (13, 1645545), (15, 1426139), (33, 648245), (39, 548515), (55, 388947), (65, 329109), (143, 149595), (165, 129649), (195, 109703), (429, 49865), (715, 29919), (2145, 9973)]