205317021

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1721}}^1$

素因数の和:1786

約数の個数: 64

約数和(自身を含む): 370298880

約数和(自身を除く): 164981859

約数列:

[1, 3, 7, 13, 19, 21, 23, 39, 57, 69, 91, 133, 161, 247, 273, 299, 399, 437, 483, 741, 897, 1311, 1721, 1729, 2093, 3059, 5163, 5187, 5681, 6279, 9177, 12047, 17043, 22373, 32699, 36141, 39583, 39767, 67119, 98097, 118749, 119301, 156611, 228893, 277081, 425087, 469833, 514579, 686679, 752077, 831243, 1275261, 1543737, 2256231, 2975609, 3602053, 5264539, 8926827, 9777001, 10806159, 15793617, 29331003, 68439007, 205317021]

約数ペア:

[(1, 205317021), (3, 68439007), (7, 29331003), (13, 15793617), (19, 10806159), (21, 9777001), (23, 8926827), (39, 5264539), (57, 3602053), (69, 2975609), (91, 2256231), (133, 1543737), (161, 1275261), (247, 831243), (273, 752077), (299, 686679), (399, 514579), (437, 469833), (483, 425087), (741, 277081), (897, 228893), (1311, 156611), (1721, 119301), (1729, 118749), (2093, 98097), (3059, 67119), (5163, 39767), (5187, 39583), (5681, 36141), (6279, 32699), (9177, 22373), (12047, 17043)]