21915376

素因数分解:

$2^4\times 7^1\times {\mathrm{419}}^1\times {\mathrm{467}}^1$

素因数の和:901

約数の個数: 40

約数和(自身を含む): 48746880

約数和(自身を除く): 26831504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 419, 467, 838, 934, 1676, 1868, 2933, 3269, 3352, 3736, 5866, 6538, 6704, 7472, 11732, 13076, 23464, 26152, 46928, 52304, 195673, 391346, 782692, 1369711, 1565384, 2739422, 3130768, 5478844, 10957688, 21915376]

約数ペア:

[(1, 21915376), (2, 10957688), (4, 5478844), (7, 3130768), (8, 2739422), (14, 1565384), (16, 1369711), (28, 782692), (56, 391346), (112, 195673), (419, 52304), (467, 46928), (838, 26152), (934, 23464), (1676, 13076), (1868, 11732), (2933, 7472), (3269, 6704), (3352, 6538), (3736, 5866)]