20626837

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{613}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 28293120

約数和(自身を除く): 7666283

約数列:

[1, 7, 11, 19, 23, 77, 133, 161, 209, 253, 437, 613, 1463, 1771, 3059, 4291, 4807, 6743, 11647, 14099, 33649, 47201, 81529, 98693, 128117, 155089, 267881, 896819, 1085623, 1875167, 2946691, 20626837]

約数ペア:

[(1, 20626837), (7, 2946691), (11, 1875167), (19, 1085623), (23, 896819), (77, 267881), (133, 155089), (161, 128117), (209, 98693), (253, 81529), (437, 47201), (613, 33649), (1463, 14099), (1771, 11647), (3059, 6743), (4291, 4807)]