71399223

素因数分解:

$3^2\times 7^3\times {\mathrm{101}}^1\times {\mathrm{229}}^1$

素因数の和:357

約数の個数: 48

約数和(自身を含む): 121992000

約数和(自身を除く): 50592777

約数列:

[1, 3, 7, 9, 21, 49, 63, 101, 147, 229, 303, 343, 441, 687, 707, 909, 1029, 1603, 2061, 2121, 3087, 4809, 4949, 6363, 11221, 14427, 14847, 23129, 33663, 34643, 44541, 69387, 78547, 100989, 103929, 161903, 208161, 235641, 311787, 485709, 706923, 1133321, 1457127, 3399963, 7933247, 10199889, 23799741, 71399223]

約数ペア:

[(1, 71399223), (3, 23799741), (7, 10199889), (9, 7933247), (21, 3399963), (49, 1457127), (63, 1133321), (101, 706923), (147, 485709), (229, 311787), (303, 235641), (343, 208161), (441, 161903), (687, 103929), (707, 100989), (909, 78547), (1029, 69387), (1603, 44541), (2061, 34643), (2121, 33663), (3087, 23129), (4809, 14847), (4949, 14427), (6363, 11221)]