20657842

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{4973}}^1$

素因数の和:5073

約数の個数: 16

約数和(自身を含む): 32470272

約数和(自身を除く): 11812430

約数列:

[1, 2, 31, 62, 67, 134, 2077, 4154, 4973, 9946, 154163, 308326, 333191, 666382, 10328921, 20657842]

約数ペア:

[(1, 20657842), (2, 10328921), (31, 666382), (62, 333191), (67, 308326), (134, 154163), (2077, 9946), (4154, 4973)]