128531194743

素因数分解:

$3^1\times 7^2\times {\mathrm{6449}}^1\times {\mathrm{135581}}^1$

素因数の和:142047

約数の個数: 24

約数和(自身を含む): 199386889200

約数和(自身を除く): 70855694457

約数列:

[1, 3, 7, 21, 49, 147, 6449, 19347, 45143, 135429, 135581, 316001, 406743, 948003, 949067, 2847201, 6643469, 19930407, 874361869, 2623085607, 6120533083, 18361599249, 42843731581, 128531194743]

約数ペア:

[(1, 128531194743), (3, 42843731581), (7, 18361599249), (21, 6120533083), (49, 2623085607), (147, 874361869), (6449, 19930407), (19347, 6643469), (45143, 2847201), (135429, 949067), (135581, 948003), (316001, 406743)]