18081921

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{373}}^1$

素因数の和:513

約数の個数: 32

約数和(自身を含む): 28651392

約数和(自身を除く): 10569471

約数列:

[1, 3, 11, 13, 33, 39, 113, 143, 339, 373, 429, 1119, 1243, 1469, 3729, 4103, 4407, 4849, 12309, 14547, 16159, 42149, 48477, 53339, 126447, 160017, 463639, 547937, 1390917, 1643811, 6027307, 18081921]

約数ペア:

[(1, 18081921), (3, 6027307), (11, 1643811), (13, 1390917), (33, 547937), (39, 463639), (113, 160017), (143, 126447), (339, 53339), (373, 48477), (429, 42149), (1119, 16159), (1243, 14547), (1469, 12309), (3729, 4849), (4103, 4407)]