261331623

素因数分解:

$3^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{9157}}^1$

素因数の和:9324

約数の個数: 32

約数和(自身を含む): 445445120

約数和(自身を除く): 184113497

約数列:

[1, 3, 7, 9, 21, 27, 63, 151, 189, 453, 1057, 1359, 3171, 4077, 9157, 9513, 27471, 28539, 64099, 82413, 192297, 247239, 576891, 1382707, 1730673, 4148121, 9678949, 12444363, 29036847, 37333089, 87110541, 261331623]

約数ペア:

[(1, 261331623), (3, 87110541), (7, 37333089), (9, 29036847), (21, 12444363), (27, 9678949), (63, 4148121), (151, 1730673), (189, 1382707), (453, 576891), (1057, 247239), (1359, 192297), (3171, 82413), (4077, 64099), (9157, 28539), (9513, 27471)]