218514615

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{4001}}^1$

素因数の和:4351

約数の個数: 32

約数和(自身を含む): 382655232

約数和(自身を除く): 164140617

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 331, 993, 1655, 3641, 4001, 4965, 10923, 12003, 18205, 20005, 44011, 54615, 60015, 132033, 220055, 660165, 1324331, 3972993, 6621655, 14567641, 19864965, 43702923, 72838205, 218514615]

約数ペア:

[(1, 218514615), (3, 72838205), (5, 43702923), (11, 19864965), (15, 14567641), (33, 6621655), (55, 3972993), (165, 1324331), (331, 660165), (993, 220055), (1655, 132033), (3641, 60015), (4001, 54615), (4965, 44011), (10923, 20005), (12003, 18205)]