21435190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2203}}^1$

素因数の和:2356

約数の個数: 32

約数和(自身を含む): 44432640

約数和(自身を除く): 22997450

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 2203, 4406, 4865, 9730, 11015, 15421, 22030, 30842, 77105, 154210, 306217, 612434, 1531085, 2143519, 3062170, 4287038, 10717595, 21435190]

約数ペア:

[(1, 21435190), (2, 10717595), (5, 4287038), (7, 3062170), (10, 2143519), (14, 1531085), (35, 612434), (70, 306217), (139, 154210), (278, 77105), (695, 30842), (973, 22030), (1390, 15421), (1946, 11015), (2203, 9730), (4406, 4865)]