177654321

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{271}}^1\times {\mathrm{431}}^1$

素因数の和:734

約数の個数: 36

約数和(自身を含む): 279542016

約数和(自身を除く): 101887695

約数列:

[1, 3, 9, 13, 39, 117, 169, 271, 431, 507, 813, 1293, 1521, 2439, 3523, 3879, 5603, 10569, 16809, 31707, 45799, 50427, 72839, 116801, 137397, 218517, 350403, 412191, 655551, 1051209, 1518413, 4555239, 13665717, 19739369, 59218107, 177654321]

約数ペア:

[(1, 177654321), (3, 59218107), (9, 19739369), (13, 13665717), (39, 4555239), (117, 1518413), (169, 1051209), (271, 655551), (431, 412191), (507, 350403), (813, 218517), (1293, 137397), (1521, 116801), (2439, 72839), (3523, 50427), (3879, 45799), (5603, 31707), (10569, 16809)]