21880955

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{1879}}^1$

素因数の和:2038

約数の個数: 16

約数和(自身を含む): 28019520

約数和(自身を除く): 6138565

約数列:

[1, 5, 17, 85, 137, 685, 1879, 2329, 9395, 11645, 31943, 159715, 257423, 1287115, 4376191, 21880955]

約数ペア:

[(1, 21880955), (5, 4376191), (17, 1287115), (85, 257423), (137, 159715), (685, 31943), (1879, 11645), (2329, 9395)]