18815729517

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{33029}}^1$

素因数の和:33595

約数の個数: 40

約数和(自身を含む): 30326428440

約数和(自身を除く): 11510698923

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 541, 1053, 1623, 4869, 7033, 14607, 21099, 33029, 43821, 63297, 99087, 189891, 297261, 429377, 569673, 891783, 1288131, 2675349, 3864393, 11593179, 17868689, 34779537, 53606067, 160818201, 232292957, 482454603, 696878871, 1447363809, 2090636613, 6271909839, 18815729517]

約数ペア:

[(1, 18815729517), (3, 6271909839), (9, 2090636613), (13, 1447363809), (27, 696878871), (39, 482454603), (81, 232292957), (117, 160818201), (351, 53606067), (541, 34779537), (1053, 17868689), (1623, 11593179), (4869, 3864393), (7033, 2675349), (14607, 1288131), (21099, 891783), (33029, 569673), (43821, 429377), (63297, 297261), (99087, 189891)]