18645957

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1231}}^1$

素因数の和:1271

約数の個数: 40

約数和(自身を含む): 32199552

約数和(自身を除く): 13553595

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 81, 99, 153, 187, 297, 459, 561, 891, 1231, 1377, 1683, 3693, 5049, 11079, 13541, 15147, 20927, 33237, 40623, 62781, 99711, 121869, 188343, 230197, 365607, 565029, 690591, 1096821, 1695087, 2071773, 6215319, 18645957]

約数ペア:

[(1, 18645957), (3, 6215319), (9, 2071773), (11, 1695087), (17, 1096821), (27, 690591), (33, 565029), (51, 365607), (81, 230197), (99, 188343), (153, 121869), (187, 99711), (297, 62781), (459, 40623), (561, 33237), (891, 20927), (1231, 15147), (1377, 13541), (1683, 11079), (3693, 5049)]