291221123525

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{2189221}}^1$

素因数の和:2189561

約数の個数: 24

約数和(自身を含む): 383577965064

約数和(自身を除く): 92356841539

約数列:

[1, 5, 17, 25, 85, 313, 425, 1565, 5321, 7825, 26605, 133025, 2189221, 10946105, 37216757, 54730525, 186083785, 685226173, 930418925, 3426130865, 11648844941, 17130654325, 58244224705, 291221123525]

約数ペア:

[(1, 291221123525), (5, 58244224705), (17, 17130654325), (25, 11648844941), (85, 3426130865), (313, 930418925), (425, 685226173), (1565, 186083785), (5321, 54730525), (7825, 37216757), (26605, 10946105), (133025, 2189221)]