90173979

素因数分解:

$3^4\times 7^1\times {\mathrm{359}}^1\times {\mathrm{443}}^1$

素因数の和:821

約数の個数: 40

約数和(自身を含む): 154725120

約数和(自身を除く): 64551141

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 359, 443, 567, 1077, 1329, 2513, 3101, 3231, 3987, 7539, 9303, 9693, 11961, 22617, 27909, 29079, 35883, 67851, 83727, 159037, 203553, 251181, 477111, 1113259, 1431333, 3339777, 4293999, 10019331, 12881997, 30057993, 90173979]

約数ペア:

[(1, 90173979), (3, 30057993), (7, 12881997), (9, 10019331), (21, 4293999), (27, 3339777), (63, 1431333), (81, 1113259), (189, 477111), (359, 251181), (443, 203553), (567, 159037), (1077, 83727), (1329, 67851), (2513, 35883), (3101, 29079), (3231, 27909), (3987, 22617), (7539, 11961), (9303, 9693)]