21000929013

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{277757}}^1$

素因数の和:278065

約数の個数: 24

約数和(自身を含む): 31428873216

約数和(自身を除く): 10427944203

約数列:

[1, 3, 9, 31, 93, 271, 279, 813, 2439, 8401, 25203, 75609, 277757, 833271, 2499813, 8610467, 25831401, 75272147, 77494203, 225816441, 677449323, 2333436557, 7000309671, 21000929013]

約数ペア:

[(1, 21000929013), (3, 7000309671), (9, 2333436557), (31, 677449323), (93, 225816441), (271, 77494203), (279, 75272147), (813, 25831401), (2439, 8610467), (8401, 2499813), (25203, 833271), (75609, 277757)]