821281136

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{3948467}}^1$

素因数の和:3948488

約数の個数: 20

約数和(自身を含む): 1713635112

約数和(自身を除く): 892353976

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 3948467, 7896934, 15793868, 31587736, 51330071, 63175472, 102660142, 205320284, 410640568, 821281136]

約数ペア:

[(1, 821281136), (2, 410640568), (4, 205320284), (8, 102660142), (13, 63175472), (16, 51330071), (26, 31587736), (52, 15793868), (104, 7896934), (208, 3948467)]