51638307

素因数分解:

$3^1\times 7^4\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:205

約数の個数: 40

約数和(自身を含む): 82282176

約数和(自身を除く): 30643869

約数列:

[1, 3, 7, 21, 49, 67, 107, 147, 201, 321, 343, 469, 749, 1029, 1407, 2247, 2401, 3283, 5243, 7169, 7203, 9849, 15729, 21507, 22981, 36701, 50183, 68943, 110103, 150549, 160867, 256907, 351281, 482601, 770721, 1053843, 2458967, 7376901, 17212769, 51638307]

約数ペア:

[(1, 51638307), (3, 17212769), (7, 7376901), (21, 2458967), (49, 1053843), (67, 770721), (107, 482601), (147, 351281), (201, 256907), (321, 160867), (343, 150549), (469, 110103), (749, 68943), (1029, 50183), (1407, 36701), (2247, 22981), (2401, 21507), (3283, 15729), (5243, 9849), (7169, 7203)]