18736839

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1237}}^1$

素因数の和:1277

約数の個数: 40

約数和(自身を含む): 32356368

約数和(自身を除く): 13619529

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 81, 99, 153, 187, 297, 459, 561, 891, 1237, 1377, 1683, 3711, 5049, 11133, 13607, 15147, 21029, 33399, 40821, 63087, 100197, 122463, 189261, 231319, 367389, 567783, 693957, 1102167, 1703349, 2081871, 6245613, 18736839]

約数ペア:

[(1, 18736839), (3, 6245613), (9, 2081871), (11, 1703349), (17, 1102167), (27, 693957), (33, 567783), (51, 367389), (81, 231319), (99, 189261), (153, 122463), (187, 100197), (297, 63087), (459, 40821), (561, 33399), (891, 21029), (1237, 15147), (1377, 13607), (1683, 11133), (3711, 5049)]