21789110

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{3209}}^1$

素因数の和:3320

約数の個数: 32

約数和(自身を含む): 45299520

約数和(自身を除く): 23510410

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 97, 194, 485, 679, 970, 1358, 3209, 3395, 6418, 6790, 16045, 22463, 32090, 44926, 112315, 224630, 311273, 622546, 1556365, 2178911, 3112730, 4357822, 10894555, 21789110]

約数ペア:

[(1, 21789110), (2, 10894555), (5, 4357822), (7, 3112730), (10, 2178911), (14, 1556365), (35, 622546), (70, 311273), (97, 224630), (194, 112315), (485, 44926), (679, 32090), (970, 22463), (1358, 16045), (3209, 6790), (3395, 6418)]