21442904

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{8147}}^1$

素因数の和:8207

約数の個数: 32

約数和(自身を含む): 46932480

約数和(自身を除く): 25489576

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 94, 188, 329, 376, 658, 1316, 2632, 8147, 16294, 32588, 57029, 65176, 114058, 228116, 382909, 456232, 765818, 1531636, 2680363, 3063272, 5360726, 10721452, 21442904]

約数ペア:

[(1, 21442904), (2, 10721452), (4, 5360726), (7, 3063272), (8, 2680363), (14, 1531636), (28, 765818), (47, 456232), (56, 382909), (94, 228116), (188, 114058), (329, 65176), (376, 57029), (658, 32588), (1316, 16294), (2632, 8147)]