281265813

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{659}}^1\times {\mathrm{1009}}^1$

素因数の和:1721

約数の個数: 24

約数和(自身を含む): 415958400

約数和(自身を除く): 134692587

約数列:

[1, 3, 9, 47, 141, 423, 659, 1009, 1977, 3027, 5931, 9081, 30973, 47423, 92919, 142269, 278757, 426807, 664931, 1994793, 5984379, 31251757, 93755271, 281265813]

約数ペア:

[(1, 281265813), (3, 93755271), (9, 31251757), (47, 5984379), (141, 1994793), (423, 664931), (659, 426807), (1009, 278757), (1977, 142269), (3027, 92919), (5931, 47423), (9081, 30973)]