253662339

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{2789}}^1$

素因数の和:2931

約数の個数: 32

約数和(自身を含む): 398545920

約数和(自身を除く): 144883581

約数列:

[1, 3, 7, 21, 61, 71, 183, 213, 427, 497, 1281, 1491, 2789, 4331, 8367, 12993, 19523, 30317, 58569, 90951, 170129, 198019, 510387, 594057, 1190903, 1386133, 3572709, 4158399, 12079159, 36237477, 84554113, 253662339]

約数ペア:

[(1, 253662339), (3, 84554113), (7, 36237477), (21, 12079159), (61, 4158399), (71, 3572709), (183, 1386133), (213, 1190903), (427, 594057), (497, 510387), (1281, 198019), (1491, 170129), (2789, 90951), (4331, 58569), (8367, 30317), (12993, 19523)]