21515808601

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{395533}}^1$

素因数の和:395968

約数の個数: 16

約数和(自身を含む): 25947030400

約数和(自身を除く): 4431221799

約数列:

[1, 7, 19, 133, 409, 2863, 7771, 54397, 395533, 2768731, 7515127, 52605889, 161772997, 1132410979, 3073686943, 21515808601]

約数ペア:

[(1, 21515808601), (7, 3073686943), (19, 1132410979), (133, 161772997), (409, 52605889), (2863, 7515127), (7771, 2768731), (54397, 395533)]