21244679

素因数分解:

${\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:179

約数の個数: 24

約数和(自身を含む): 24535440

約数和(自身を除く): 3290761

約数列:

[1, 17, 19, 53, 73, 289, 323, 901, 1007, 1241, 1387, 3869, 5491, 15317, 17119, 21097, 23579, 65773, 73511, 291023, 400843, 1118141, 1249687, 21244679]

約数ペア:

[(1, 21244679), (17, 1249687), (19, 1118141), (53, 400843), (73, 291023), (289, 73511), (323, 65773), (901, 23579), (1007, 21097), (1241, 17119), (1387, 15317), (3869, 5491)]