31987683

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:353

約数の個数: 64

約数和(自身を含む): 59781120

約数和(自身を除く): 27793437

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 47, 63, 91, 117, 141, 189, 273, 277, 329, 351, 423, 611, 819, 831, 987, 1269, 1833, 1939, 2457, 2493, 2961, 3601, 4277, 5499, 5817, 7479, 8883, 10803, 12831, 13019, 16497, 17451, 25207, 32409, 38493, 39057, 52353, 75621, 91133, 97227, 115479, 117171, 169247, 226863, 273399, 351513, 507741, 680589, 820197, 1184729, 1523223, 2460591, 3554187, 4569669, 10662561, 31987683]

約数ペア:

[(1, 31987683), (3, 10662561), (7, 4569669), (9, 3554187), (13, 2460591), (21, 1523223), (27, 1184729), (39, 820197), (47, 680589), (63, 507741), (91, 351513), (117, 273399), (141, 226863), (189, 169247), (273, 117171), (277, 115479), (329, 97227), (351, 91133), (423, 75621), (611, 52353), (819, 39057), (831, 38493), (987, 32409), (1269, 25207), (1833, 17451), (1939, 16497), (2457, 13019), (2493, 12831), (2961, 10803), (3601, 8883), (4277, 7479), (5499, 5817)]