21357364

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{16229}}^1$

素因数の和:16287

約数の個数: 24

約数和(自身を含む): 43626240

約数和(自身を除く): 22268876

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 16229, 32458, 64916, 113603, 227206, 454412, 762763, 1525526, 3051052, 5339341, 10678682, 21357364]

約数ペア:

[(1, 21357364), (2, 10678682), (4, 5339341), (7, 3051052), (14, 1525526), (28, 762763), (47, 454412), (94, 227206), (188, 113603), (329, 64916), (658, 32458), (1316, 16229)]