20545251

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{7669}}^1$

素因数の和:7738

約数の個数: 16

約数和(自身を含む): 29452800

約数和(自身を除く): 8907549

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 7669, 23007, 145711, 360443, 437133, 1081329, 6848417, 20545251]

約数ペア:

[(1, 20545251), (3, 6848417), (19, 1081329), (47, 437133), (57, 360443), (141, 145711), (893, 23007), (2679, 7669)]