398420253

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{30259}}^1$

素因数の和:30302

約数の個数: 48

約数和(自身を含む): 755289600

約数和(自身を除く): 356869347

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 231, 399, 627, 693, 1197, 1463, 1881, 4389, 13167, 30259, 90777, 211813, 272331, 332849, 574921, 635439, 998547, 1724763, 1906317, 2329943, 2995641, 4024447, 5174289, 6324131, 6989829, 12073341, 18972393, 20969487, 36220023, 44268917, 56917179, 132806751, 398420253]

約数ペア:

[(1, 398420253), (3, 132806751), (7, 56917179), (9, 44268917), (11, 36220023), (19, 20969487), (21, 18972393), (33, 12073341), (57, 6989829), (63, 6324131), (77, 5174289), (99, 4024447), (133, 2995641), (171, 2329943), (209, 1906317), (231, 1724763), (399, 998547), (627, 635439), (693, 574921), (1197, 332849), (1463, 272331), (1881, 211813), (4389, 90777), (13167, 30259)]