19131890

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4261}}^1$

素因数の和:4717

約数の個数: 16

約数和(自身を含む): 34522200

約数和(自身を除く): 15390310

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4261, 4490, 8522, 21305, 42610, 1913189, 3826378, 9565945, 19131890]

約数ペア:

[(1, 19131890), (2, 9565945), (5, 3826378), (10, 1913189), (449, 42610), (898, 21305), (2245, 8522), (4261, 4490)]