20978705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{5693}}^1$

素因数の和:5776

約数の個数: 16

約数和(自身を含む): 27877824

約数和(自身を除く): 6899119

約数列:

[1, 5, 11, 55, 67, 335, 737, 3685, 5693, 28465, 62623, 313115, 381431, 1907155, 4195741, 20978705]

約数ペア:

[(1, 20978705), (5, 4195741), (11, 1907155), (55, 381431), (67, 313115), (335, 62623), (737, 28465), (3685, 5693)]