21704878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{829}}^1$

素因数の和:916

約数の個数: 32

約数和(自身を含む): 37648800

約数和(自身を除く): 15943922

約数列:

[1, 2, 13, 19, 26, 38, 53, 106, 247, 494, 689, 829, 1007, 1378, 1658, 2014, 10777, 13091, 15751, 21554, 26182, 31502, 43937, 87874, 204763, 409526, 571181, 834803, 1142362, 1669606, 10852439, 21704878]

約数ペア:

[(1, 21704878), (2, 10852439), (13, 1669606), (19, 1142362), (26, 834803), (38, 571181), (53, 409526), (106, 204763), (247, 87874), (494, 43937), (689, 31502), (829, 26182), (1007, 21554), (1378, 15751), (1658, 13091), (2014, 10777)]