20816075

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{6997}}^1$

素因数の和:7031

約数の個数: 24

約数和(自身を含む): 31239072

約数和(自身を除く): 10422997

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 2975, 6997, 34985, 48979, 118949, 174925, 244895, 594745, 832643, 1224475, 2973725, 4163215, 20816075]

約数ペア:

[(1, 20816075), (5, 4163215), (7, 2973725), (17, 1224475), (25, 832643), (35, 594745), (85, 244895), (119, 174925), (175, 118949), (425, 48979), (595, 34985), (2975, 6997)]