19710988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{1291}}^1$

素因数の和:1653

約数の個数: 24

約数和(自身を含む): 37767744

約数和(自身を除く): 18056756

約数列:

[1, 2, 4, 11, 22, 44, 347, 694, 1291, 1388, 2582, 3817, 5164, 7634, 14201, 15268, 28402, 56804, 447977, 895954, 1791908, 4927747, 9855494, 19710988]

約数ペア:

[(1, 19710988), (2, 9855494), (4, 4927747), (11, 1791908), (22, 895954), (44, 447977), (347, 56804), (694, 28402), (1291, 15268), (1388, 14201), (2582, 7634), (3817, 5164)]