19681865

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{19391}}^1$

素因数の和:19432

約数の個数: 16

約数和(自身を含む): 27924480

約数和(自身を除く): 8242615

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 19391, 96955, 135737, 562339, 678685, 2811695, 3936373, 19681865]

約数ペア:

[(1, 19681865), (5, 3936373), (7, 2811695), (29, 678685), (35, 562339), (145, 135737), (203, 96955), (1015, 19391)]