19693328

素因数分解:

$2^4\times {\mathrm{97}}^1\times {\mathrm{12689}}^1$

素因数の和:12794

約数の個数: 20

約数和(自身を含む): 38552220

約数和(自身を除く): 18858892

約数列:

[1, 2, 4, 8, 16, 97, 194, 388, 776, 1552, 12689, 25378, 50756, 101512, 203024, 1230833, 2461666, 4923332, 9846664, 19693328]

約数ペア:

[(1, 19693328), (2, 9846664), (4, 4923332), (8, 2461666), (16, 1230833), (97, 203024), (194, 101512), (388, 50756), (776, 25378), (1552, 12689)]