20978546

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{6203}}^1$

素因数の和:6313

約数の個数: 16

約数和(自身を含む): 33501600

約数和(自身を除く): 12523054

約数列:

[1, 2, 19, 38, 89, 178, 1691, 3382, 6203, 12406, 117857, 235714, 552067, 1104134, 10489273, 20978546]

約数ペア:

[(1, 20978546), (2, 10489273), (19, 1104134), (38, 552067), (89, 235714), (178, 117857), (1691, 12406), (3382, 6203)]