21287670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{709589}}^1$

素因数の和:709599

約数の個数: 16

約数和(自身を含む): 51090480

約数和(自身を除く): 29802810

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 709589, 1419178, 2128767, 3547945, 4257534, 7095890, 10643835, 21287670]

約数ペア:

[(1, 21287670), (2, 10643835), (3, 7095890), (5, 4257534), (6, 3547945), (10, 2128767), (15, 1419178), (30, 709589)]