21447295

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{3701}}^1$

素因数の和:3786

約数の個数: 16

約数和(自身を含む): 27542880

約数和(自身を除く): 6095585

約数列:

[1, 5, 19, 61, 95, 305, 1159, 3701, 5795, 18505, 70319, 225761, 351595, 1128805, 4289459, 21447295]

約数ペア:

[(1, 21447295), (5, 4289459), (19, 1128805), (61, 351595), (95, 225761), (305, 70319), (1159, 18505), (3701, 5795)]