21612287

素因数分解:

${\mathrm{17}}^3\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:187

約数の個数: 16

約数和(自身を含む): 23677920

約数和(自身を除く): 2065633

約数列:

[1, 17, 53, 83, 289, 901, 1411, 4399, 4913, 15317, 23987, 74783, 260389, 407779, 1271311, 21612287]

約数ペア:

[(1, 21612287), (17, 1271311), (53, 407779), (83, 260389), (289, 74783), (901, 23987), (1411, 15317), (4399, 4913)]