20803055

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3517}}^1$

素因数の和:3555

約数の個数: 24

約数和(自身を含む): 30902112

約数和(自身を除く): 10099057

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 3517, 5915, 17585, 24619, 45721, 123095, 228605, 320047, 594373, 1600235, 2971865, 4160611, 20803055]

約数ペア:

[(1, 20803055), (5, 4160611), (7, 2971865), (13, 1600235), (35, 594373), (65, 320047), (91, 228605), (169, 123095), (455, 45721), (845, 24619), (1183, 17585), (3517, 5915)]