31128247917

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{416359}}^1$

素因数の和:416455

約数の個数: 40

約数和(自身を含む): 50782596480

約数和(自身を除く): 19654348563

約数列:

[1, 3, 9, 13, 27, 39, 71, 81, 117, 213, 351, 639, 923, 1053, 1917, 2769, 5751, 8307, 24921, 74763, 416359, 1249077, 3747231, 5412667, 11241693, 16238001, 29561489, 33725079, 48714003, 88684467, 146142009, 266053401, 384299357, 438426027, 798160203, 1152898071, 2394480609, 3458694213, 10376082639, 31128247917]

約数ペア:

[(1, 31128247917), (3, 10376082639), (9, 3458694213), (13, 2394480609), (27, 1152898071), (39, 798160203), (71, 438426027), (81, 384299357), (117, 266053401), (213, 146142009), (351, 88684467), (639, 48714003), (923, 33725079), (1053, 29561489), (1917, 16238001), (2769, 11241693), (5751, 5412667), (8307, 3747231), (24921, 1249077), (74763, 416359)]