217534471

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 292073472

約数和(自身を除く): 74539001

約数列:

[1, 7, 11, 31, 47, 49, 77, 217, 277, 329, 341, 517, 539, 1457, 1519, 1939, 2303, 2387, 3047, 3619, 8587, 10199, 13019, 13573, 16027, 16709, 21329, 25333, 60109, 71393, 91133, 94457, 112189, 143209, 149303, 403589, 420763, 637931, 661199, 785323, 1002463, 2825123, 4439479, 4628393, 7017241, 19775861, 31076353, 217534471]

約数ペア:

[(1, 217534471), (7, 31076353), (11, 19775861), (31, 7017241), (47, 4628393), (49, 4439479), (77, 2825123), (217, 1002463), (277, 785323), (329, 661199), (341, 637931), (517, 420763), (539, 403589), (1457, 149303), (1519, 143209), (1939, 112189), (2303, 94457), (2387, 91133), (3047, 71393), (3619, 60109), (8587, 25333), (10199, 21329), (13019, 16709), (13573, 16027)]