21251896

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1949}}^1$

素因数の和:2031

約数の個数: 32

約数和(自身を含む): 42120000

約数和(自身を除く): 20868104

約数列:

[1, 2, 4, 8, 29, 47, 58, 94, 116, 188, 232, 376, 1363, 1949, 2726, 3898, 5452, 7796, 10904, 15592, 56521, 91603, 113042, 183206, 226084, 366412, 452168, 732824, 2656487, 5312974, 10625948, 21251896]

約数ペア:

[(1, 21251896), (2, 10625948), (4, 5312974), (8, 2656487), (29, 732824), (47, 452168), (58, 366412), (94, 226084), (116, 183206), (188, 113042), (232, 91603), (376, 56521), (1363, 15592), (1949, 10904), (2726, 7796), (3898, 5452)]