90720189

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{12973}}^1$

素因数の和:13026

約数の個数: 32

約数和(自身を含む): 157763840

約数和(自身を除く): 67043651

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 2331, 6993, 12973, 38919, 90811, 116757, 272433, 350271, 480001, 817299, 1440003, 2451897, 3360007, 4320009, 10080021, 12960027, 30240063, 90720189]

約数ペア:

[(1, 90720189), (3, 30240063), (7, 12960027), (9, 10080021), (21, 4320009), (27, 3360007), (37, 2451897), (63, 1440003), (111, 817299), (189, 480001), (259, 350271), (333, 272433), (777, 116757), (999, 90811), (2331, 38919), (6993, 12973)]