20131839

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{523}}^1$

素因数の和:596

約数の個数: 48

約数和(自身を含む): 36621312

約数和(自身を除く): 16489473

約数列:

[1, 3, 7, 9, 13, 21, 39, 47, 63, 91, 117, 141, 273, 329, 423, 523, 611, 819, 987, 1569, 1833, 2961, 3661, 4277, 4707, 5499, 6799, 10983, 12831, 20397, 24581, 32949, 38493, 47593, 61191, 73743, 142779, 172067, 221229, 319553, 428337, 516201, 958659, 1548603, 2236871, 2875977, 6710613, 20131839]

約数ペア:

[(1, 20131839), (3, 6710613), (7, 2875977), (9, 2236871), (13, 1548603), (21, 958659), (39, 516201), (47, 428337), (63, 319553), (91, 221229), (117, 172067), (141, 142779), (273, 73743), (329, 61191), (423, 47593), (523, 38493), (611, 32949), (819, 24581), (987, 20397), (1569, 12831), (1833, 10983), (2961, 6799), (3661, 5499), (4277, 4707)]