201581709

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1\times {\mathrm{383}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 313196544

約数和(自身を除く): 111614835

約数列:

[1, 3, 7, 21, 71, 213, 353, 383, 497, 1059, 1149, 1491, 2471, 2681, 7413, 8043, 25063, 27193, 75189, 81579, 135199, 175441, 190351, 405597, 526323, 571053, 946393, 2839179, 9599129, 28797387, 67193903, 201581709]

約数ペア:

[(1, 201581709), (3, 67193903), (7, 28797387), (21, 9599129), (71, 2839179), (213, 946393), (353, 571053), (383, 526323), (497, 405597), (1059, 190351), (1149, 175441), (1491, 135199), (2471, 81579), (2681, 75189), (7413, 27193), (8043, 25063)]