21000686382393

素因数分解:

$3^1\times {\mathrm{47}}^2\times {\mathrm{4637}}^1\times {\mathrm{683407}}^1$

素因数の和:688141

約数の個数: 24

約数和(自身を含む): 28615566832512

約数和(自身を除く): 7614880450119

約数列:

[1, 3, 47, 141, 2209, 4637, 6627, 13911, 217939, 653817, 683407, 2050221, 10243133, 30729399, 32120129, 96360387, 1509646063, 3168958259, 4528938189, 9506874777, 148941038173, 446823114519, 7000228794131, 21000686382393]

約数ペア:

[(1, 21000686382393), (3, 7000228794131), (47, 446823114519), (141, 148941038173), (2209, 9506874777), (4637, 4528938189), (6627, 3168958259), (13911, 1509646063), (217939, 96360387), (653817, 32120129), (683407, 30729399), (2050221, 10243133)]