20365575

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{15973}}^1$

素因数の和:16003

約数の個数: 24

約数和(自身を含む): 35653968

約数和(自身を除く): 15288393

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 15973, 47919, 79865, 239595, 271541, 399325, 814623, 1197975, 1357705, 4073115, 6788525, 20365575]

約数ペア:

[(1, 20365575), (3, 6788525), (5, 4073115), (15, 1357705), (17, 1197975), (25, 814623), (51, 399325), (75, 271541), (85, 239595), (255, 79865), (425, 47919), (1275, 15973)]