15821990

素因数分解:

$2^1\times 5^1\times {\mathrm{739}}^1\times {\mathrm{2141}}^1$

素因数の和:2887

約数の個数: 16

約数和(自身を含む): 28531440

約数和(自身を除く): 12709450

約数列:

[1, 2, 5, 10, 739, 1478, 2141, 3695, 4282, 7390, 10705, 21410, 1582199, 3164398, 7910995, 15821990]

約数ペア:

[(1, 15821990), (2, 7910995), (5, 3164398), (10, 1582199), (739, 21410), (1478, 10705), (2141, 7390), (3695, 4282)]