21560075

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{311}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 27855360

約数和(自身を除く): 6295285

約数列:

[1, 5, 25, 47, 59, 235, 295, 311, 1175, 1475, 1555, 2773, 7775, 13865, 14617, 18349, 69325, 73085, 91745, 365425, 458725, 862403, 4312015, 21560075]

約数ペア:

[(1, 21560075), (5, 4312015), (25, 862403), (47, 458725), (59, 365425), (235, 91745), (295, 73085), (311, 69325), (1175, 18349), (1475, 14617), (1555, 13865), (2773, 7775)]