21815896

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3413}}^1$

素因数の和:3483

約数の個数: 32

約数和(自身を含む): 44245440

約数和(自身を除く): 22429544

約数列:

[1, 2, 4, 8, 17, 34, 47, 68, 94, 136, 188, 376, 799, 1598, 3196, 3413, 6392, 6826, 13652, 27304, 58021, 116042, 160411, 232084, 320822, 464168, 641644, 1283288, 2726987, 5453974, 10907948, 21815896]

約数ペア:

[(1, 21815896), (2, 10907948), (4, 5453974), (8, 2726987), (17, 1283288), (34, 641644), (47, 464168), (68, 320822), (94, 232084), (136, 160411), (188, 116042), (376, 58021), (799, 27304), (1598, 13652), (3196, 6826), (3413, 6392)]