20872814

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{787}}^1$

素因数の和:1027

約数の個数: 16

約数和(自身を含む): 31914000

約数和(自身を除く): 11041186

約数列:

[1, 2, 89, 149, 178, 298, 787, 1574, 13261, 26522, 70043, 117263, 140086, 234526, 10436407, 20872814]

約数ペア:

[(1, 20872814), (2, 10436407), (89, 234526), (149, 140086), (178, 117263), (298, 70043), (787, 26522), (1574, 13261)]