19730385

素因数分解:

$3^6\times 5^1\times {\mathrm{5413}}^1$

素因数の和:5436

約数の個数: 28

約数和(自身を含む): 35505012

約数和(自身を除く): 15774627

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5413, 16239, 27065, 48717, 81195, 146151, 243585, 438453, 730755, 1315359, 2192265, 3946077, 6576795, 19730385]

約数ペア:

[(1, 19730385), (3, 6576795), (5, 3946077), (9, 2192265), (15, 1315359), (27, 730755), (45, 438453), (81, 243585), (135, 146151), (243, 81195), (405, 48717), (729, 27065), (1215, 16239), (3645, 5413)]