209260359

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4253}}^1$

素因数の和:4348

約数の個数: 48

約数和(自身を含む): 382247424

約数和(自身を除く): 172987065

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 71, 77, 99, 213, 231, 497, 639, 693, 781, 1491, 2343, 4253, 4473, 5467, 7029, 12759, 16401, 29771, 38277, 46783, 49203, 89313, 140349, 267939, 301963, 327481, 421047, 905889, 982443, 2113741, 2717667, 2947329, 3321593, 6341223, 9964779, 19023669, 23251151, 29894337, 69753453, 209260359]

約数ペア:

[(1, 209260359), (3, 69753453), (7, 29894337), (9, 23251151), (11, 19023669), (21, 9964779), (33, 6341223), (63, 3321593), (71, 2947329), (77, 2717667), (99, 2113741), (213, 982443), (231, 905889), (497, 421047), (639, 327481), (693, 301963), (781, 267939), (1491, 140349), (2343, 89313), (4253, 49203), (4473, 46783), (5467, 38277), (7029, 29771), (12759, 16401)]