208499655

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{21821}}^1$

素因数の和:21856

約数の個数: 48

約数和(自身を含む): 417934944

約数和(自身を除く): 209435289

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 195, 245, 273, 455, 637, 735, 1365, 1911, 3185, 9555, 21821, 65463, 109105, 152747, 283673, 327315, 458241, 763735, 851019, 1069229, 1418365, 1985711, 2291205, 3207687, 4255095, 5346145, 5957133, 9928555, 13899977, 16038435, 29785665, 41699931, 69499885, 208499655]

約数ペア:

[(1, 208499655), (3, 69499885), (5, 41699931), (7, 29785665), (13, 16038435), (15, 13899977), (21, 9928555), (35, 5957133), (39, 5346145), (49, 4255095), (65, 3207687), (91, 2291205), (105, 1985711), (147, 1418365), (195, 1069229), (245, 851019), (273, 763735), (455, 458241), (637, 327315), (735, 283673), (1365, 152747), (1911, 109105), (3185, 65463), (9555, 21821)]