221796255

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{1777}}^1$

素因数の和:1995

約数の個数: 32

約数和(自身を含む): 364077504

約数和(自身を除く): 142281249

約数列:

[1, 3, 5, 15, 53, 157, 159, 265, 471, 785, 795, 1777, 2355, 5331, 8321, 8885, 24963, 26655, 41605, 94181, 124815, 278989, 282543, 470905, 836967, 1394945, 1412715, 4184835, 14786417, 44359251, 73932085, 221796255]

約数ペア:

[(1, 221796255), (3, 73932085), (5, 44359251), (15, 14786417), (53, 4184835), (157, 1412715), (159, 1394945), (265, 836967), (471, 470905), (785, 282543), (795, 278989), (1777, 124815), (2355, 94181), (5331, 41605), (8321, 26655), (8885, 24963)]