21095526160

素因数分解:

$2^4\times 5^1\times {\mathrm{617}}^1\times {\mathrm{427381}}^1$

素因数の和:428011

約数の個数: 40

約数和(自身を含む): 49126706136

約数和(自身を除く): 28031179976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 617, 1234, 2468, 3085, 4936, 6170, 9872, 12340, 24680, 49360, 427381, 854762, 1709524, 2136905, 3419048, 4273810, 6838096, 8547620, 17095240, 34190480, 263694077, 527388154, 1054776308, 1318470385, 2109552616, 2636940770, 4219105232, 5273881540, 10547763080, 21095526160]

約数ペア:

[(1, 21095526160), (2, 10547763080), (4, 5273881540), (5, 4219105232), (8, 2636940770), (10, 2109552616), (16, 1318470385), (20, 1054776308), (40, 527388154), (80, 263694077), (617, 34190480), (1234, 17095240), (2468, 8547620), (3085, 6838096), (4936, 4273810), (6170, 3419048), (9872, 2136905), (12340, 1709524), (24680, 854762), (49360, 427381)]