21161415

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{463}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 37149696

約数和(自身を除く): 15988281

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 277, 463, 831, 1385, 1389, 2315, 3047, 4155, 5093, 6945, 9141, 15235, 15279, 25465, 45705, 76395, 128251, 384753, 641255, 1410761, 1923765, 4232283, 7053805, 21161415]

約数ペア:

[(1, 21161415), (3, 7053805), (5, 4232283), (11, 1923765), (15, 1410761), (33, 641255), (55, 384753), (165, 128251), (277, 76395), (463, 45705), (831, 25465), (1385, 15279), (1389, 15235), (2315, 9141), (3047, 6945), (4155, 5093)]