20298616

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2749}}^1$

素因数の和:2839

約数の個数: 32

約数和(自身を含む): 41580000

約数和(自身を除く): 21281384

約数列:

[1, 2, 4, 8, 13, 26, 52, 71, 104, 142, 284, 568, 923, 1846, 2749, 3692, 5498, 7384, 10996, 21992, 35737, 71474, 142948, 195179, 285896, 390358, 780716, 1561432, 2537327, 5074654, 10149308, 20298616]

約数ペア:

[(1, 20298616), (2, 10149308), (4, 5074654), (8, 2537327), (13, 1561432), (26, 780716), (52, 390358), (71, 285896), (104, 195179), (142, 142948), (284, 71474), (568, 35737), (923, 21992), (1846, 10996), (2749, 7384), (3692, 5498)]