215044557

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 365568000

約数和(自身を除く): 150523443

約数列:

[1, 3, 7, 13, 21, 39, 59, 79, 91, 169, 177, 237, 273, 413, 507, 553, 767, 1027, 1183, 1239, 1659, 2197, 2301, 3081, 3549, 4661, 5369, 6591, 7189, 9971, 13351, 13983, 15379, 16107, 21567, 29913, 32627, 40053, 46137, 60593, 69797, 93457, 97881, 129623, 173563, 181779, 209391, 280371, 388869, 424151, 520689, 787709, 907361, 1214941, 1272453, 2363127, 2722083, 3644823, 5513963, 10240217, 16541889, 30720651, 71681519, 215044557]

約数ペア:

[(1, 215044557), (3, 71681519), (7, 30720651), (13, 16541889), (21, 10240217), (39, 5513963), (59, 3644823), (79, 2722083), (91, 2363127), (169, 1272453), (177, 1214941), (237, 907361), (273, 787709), (413, 520689), (507, 424151), (553, 388869), (767, 280371), (1027, 209391), (1183, 181779), (1239, 173563), (1659, 129623), (2197, 97881), (2301, 93457), (3081, 69797), (3549, 60593), (4661, 46137), (5369, 40053), (6591, 32627), (7189, 29913), (9971, 21567), (13351, 16107), (13983, 15379)]