19906731

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5867}}^1$

素因数の和:5915

約数の個数: 24

約数和(自身を含む): 32039280

約数和(自身を除く): 12132549

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 5867, 17601, 52803, 76271, 170143, 228813, 510429, 686439, 1531287, 2211859, 6635577, 19906731]

約数ペア:

[(1, 19906731), (3, 6635577), (9, 2211859), (13, 1531287), (29, 686439), (39, 510429), (87, 228813), (117, 170143), (261, 76271), (377, 52803), (1131, 17601), (3393, 5867)]