16538781609

素因数分解:

$3^4\times 7^1\times {\mathrm{3023}}^1\times {\mathrm{9649}}^1$

素因数の和:12691

約数の個数: 40

約数和(自身を含む): 28247788800

約数和(自身を除く): 11709007191

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 3023, 9069, 9649, 21161, 27207, 28947, 63483, 67543, 81621, 86841, 190449, 202629, 244863, 260523, 571347, 607887, 781569, 1714041, 1823661, 5470983, 29168927, 87506781, 204182489, 262520343, 612547467, 787561029, 1837642401, 2362683087, 5512927203, 16538781609]

約数ペア:

[(1, 16538781609), (3, 5512927203), (7, 2362683087), (9, 1837642401), (21, 787561029), (27, 612547467), (63, 262520343), (81, 204182489), (189, 87506781), (567, 29168927), (3023, 5470983), (9069, 1823661), (9649, 1714041), (21161, 781569), (27207, 607887), (28947, 571347), (63483, 260523), (67543, 244863), (81621, 202629), (86841, 190449)]