19788873

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{5231}}^1$

素因数の和:5344

約数の個数: 16

約数和(自身を含む): 28713216

約数和(自身を除く): 8924343

約数列:

[1, 3, 13, 39, 97, 291, 1261, 3783, 5231, 15693, 68003, 204009, 507407, 1522221, 6596291, 19788873]

約数ペア:

[(1, 19788873), (3, 6596291), (13, 1522221), (39, 507407), (97, 204009), (291, 68003), (1261, 15693), (3783, 5231)]