20687514615

素因数分解:

$3^6\times 5^1\times {\mathrm{5675587}}^1$

素因数の和:5675610

約数の個数: 28

約数和(自身を含む): 37220506104

約数和(自身を除く): 16532991489

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5675587, 17026761, 28377935, 51080283, 85133805, 153240849, 255401415, 459722547, 766204245, 1379167641, 2298612735, 4137502923, 6895838205, 20687514615]

約数ペア:

[(1, 20687514615), (3, 6895838205), (5, 4137502923), (9, 2298612735), (15, 1379167641), (27, 766204245), (45, 459722547), (81, 255401415), (135, 153240849), (243, 85133805), (405, 51080283), (729, 28377935), (1215, 17026761), (3645, 5675587)]