20749565

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{2693}}^1$

素因数の和:2788

約数の個数: 16

約数和(自身を含む): 26379648

約数和(自身を除く): 5630083

約数列:

[1, 5, 23, 67, 115, 335, 1541, 2693, 7705, 13465, 61939, 180431, 309695, 902155, 4149913, 20749565]

約数ペア:

[(1, 20749565), (5, 4149913), (23, 902155), (67, 309695), (115, 180431), (335, 61939), (1541, 13465), (2693, 7705)]