21775045

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 29635200

約数和(自身を除く): 7860155

約数列:

[1, 5, 17, 19, 85, 95, 97, 139, 323, 485, 695, 1615, 1649, 1843, 2363, 2641, 8245, 9215, 11815, 13205, 13483, 31331, 44897, 67415, 156655, 224485, 229211, 256177, 1146055, 1280885, 4355009, 21775045]

約数ペア:

[(1, 21775045), (5, 4355009), (17, 1280885), (19, 1146055), (85, 256177), (95, 229211), (97, 224485), (139, 156655), (323, 67415), (485, 44897), (695, 31331), (1615, 13483), (1649, 13205), (1843, 11815), (2363, 9215), (2641, 8245)]