221453991

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{60457}}^1$

素因数の和:60511

約数の個数: 24

約数和(自身を含む): 358395024

約数和(自身を除く): 136941033

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 333, 407, 1221, 3663, 60457, 181371, 544113, 665027, 1995081, 2236909, 5985243, 6710727, 20132181, 24605999, 73817997, 221453991]

約数ペア:

[(1, 221453991), (3, 73817997), (9, 24605999), (11, 20132181), (33, 6710727), (37, 5985243), (99, 2236909), (111, 1995081), (333, 665027), (407, 544113), (1221, 181371), (3663, 60457)]