20972974

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:576

約数の個数: 32

約数和(自身を含む): 36080640

約数和(自身を除く): 15107666

約数列:

[1, 2, 11, 22, 29, 58, 71, 142, 319, 463, 638, 781, 926, 1562, 2059, 4118, 5093, 10186, 13427, 22649, 26854, 32873, 45298, 65746, 147697, 295394, 361603, 723206, 953317, 1906634, 10486487, 20972974]

約数ペア:

[(1, 20972974), (2, 10486487), (11, 1906634), (22, 953317), (29, 723206), (58, 361603), (71, 295394), (142, 147697), (319, 65746), (463, 45298), (638, 32873), (781, 26854), (926, 22649), (1562, 13427), (2059, 10186), (4118, 5093)]