18201974535

素因数分解:

$3^7\times 5^1\times {\mathrm{1664561}}^1$

素因数の和:1664587

約数の個数: 32

約数和(自身を含む): 32758580160

約数和(自身を除く): 14556605625

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 2187, 3645, 10935, 1664561, 4993683, 8322805, 14981049, 24968415, 44943147, 74905245, 134829441, 224715735, 404488323, 674147205, 1213464969, 2022441615, 3640394907, 6067324845, 18201974535]

約数ペア:

[(1, 18201974535), (3, 6067324845), (5, 3640394907), (9, 2022441615), (15, 1213464969), (27, 674147205), (45, 404488323), (81, 224715735), (135, 134829441), (243, 74905245), (405, 44943147), (729, 24968415), (1215, 14981049), (2187, 8322805), (3645, 4993683), (10935, 1664561)]