18256995

素因数分解:

$3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{739}}^1$

素因数の和:817

約数の個数: 40

約数和(自身を含む): 33308880

約数和(自身を除く): 15051885

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 183, 305, 405, 549, 739, 915, 1647, 2217, 2745, 3695, 4941, 6651, 8235, 11085, 19953, 24705, 33255, 45079, 59859, 99765, 135237, 225395, 299295, 405711, 676185, 1217133, 2028555, 3651399, 6085665, 18256995]

約数ペア:

[(1, 18256995), (3, 6085665), (5, 3651399), (9, 2028555), (15, 1217133), (27, 676185), (45, 405711), (61, 299295), (81, 225395), (135, 135237), (183, 99765), (305, 59859), (405, 45079), (549, 33255), (739, 24705), (915, 19953), (1647, 11085), (2217, 8235), (2745, 6651), (3695, 4941)]