221745009

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1\times {\mathrm{1669}}^1$

素因数の和:2400

約数の個数: 16

約数和(自身を含む): 300706880

約数和(自身を除く): 78961871

約数列:

[1, 3, 67, 201, 661, 1669, 1983, 5007, 44287, 111823, 132861, 335469, 1103209, 3309627, 73915003, 221745009]

約数ペア:

[(1, 221745009), (3, 73915003), (67, 3309627), (201, 1103209), (661, 335469), (1669, 132861), (1983, 111823), (5007, 44287)]