20976868

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{4219}}^1$

素因数の和:4347

約数の個数: 24

約数和(自身を含む): 40410720

約数和(自身を除く): 19433852

約数列:

[1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4219, 4972, 8438, 16876, 46409, 92818, 185636, 476747, 953494, 1906988, 5244217, 10488434, 20976868]

約数ペア:

[(1, 20976868), (2, 10488434), (4, 5244217), (11, 1906988), (22, 953494), (44, 476747), (113, 185636), (226, 92818), (452, 46409), (1243, 16876), (2486, 8438), (4219, 4972)]