81890588

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{9103}}^1$

素因数の和:9293

約数の個数: 24

約数和(自身を含む): 155241408

約数和(自身を除く): 73350820

約数列:

[1, 2, 4, 13, 26, 52, 173, 346, 692, 2249, 4498, 8996, 9103, 18206, 36412, 118339, 236678, 473356, 1574819, 3149638, 6299276, 20472647, 40945294, 81890588]

約数ペア:

[(1, 81890588), (2, 40945294), (4, 20472647), (13, 6299276), (26, 3149638), (52, 1574819), (173, 473356), (346, 236678), (692, 118339), (2249, 36412), (4498, 18206), (8996, 9103)]