21565208

素因数分解:

$2^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 48211200

約数和(自身を除く): 26645992

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 59, 61, 107, 118, 122, 214, 236, 244, 413, 427, 428, 472, 488, 749, 826, 854, 856, 1498, 1652, 1708, 2996, 3304, 3416, 3599, 5992, 6313, 6527, 7198, 12626, 13054, 14396, 25193, 25252, 26108, 28792, 44191, 45689, 50386, 50504, 52216, 88382, 91378, 100772, 176764, 182756, 201544, 353528, 365512, 385093, 770186, 1540372, 2695651, 3080744, 5391302, 10782604, 21565208]

約数ペア:

[(1, 21565208), (2, 10782604), (4, 5391302), (7, 3080744), (8, 2695651), (14, 1540372), (28, 770186), (56, 385093), (59, 365512), (61, 353528), (107, 201544), (118, 182756), (122, 176764), (214, 100772), (236, 91378), (244, 88382), (413, 52216), (427, 50504), (428, 50386), (472, 45689), (488, 44191), (749, 28792), (826, 26108), (854, 25252), (856, 25193), (1498, 14396), (1652, 13054), (1708, 12626), (2996, 7198), (3304, 6527), (3416, 6313), (3599, 5992)]