21291284252

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40021211}}^1$

素因数の和:40021241

約数の個数: 24

約数和(自身を含む): 44823757440

約数和(自身を除く): 23532473188

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40021211, 80042422, 160084844, 280148477, 560296954, 760403009, 1120593908, 1520806018, 3041612036, 5322821063, 10645642126, 21291284252]

約数ペア:

[(1, 21291284252), (2, 10645642126), (4, 5322821063), (7, 3041612036), (14, 1520806018), (19, 1120593908), (28, 760403009), (38, 560296954), (76, 280148477), (133, 160084844), (266, 80042422), (532, 40021211)]