221265748

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{56503}}^1$

素因数の和:56607

約数の個数: 24

約数和(自身を含む): 427170240

約数和(自身を除く): 205904492

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 56503, 113006, 226012, 621533, 1243066, 2486132, 5028767, 10057534, 20115068, 55316437, 110632874, 221265748]

約数ペア:

[(1, 221265748), (2, 110632874), (4, 55316437), (11, 20115068), (22, 10057534), (44, 5028767), (89, 2486132), (178, 1243066), (356, 621533), (979, 226012), (1958, 113006), (3916, 56503)]