21169884

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{479}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 51609600

約数和(自身を除く): 30439716

約数列:

[1, 2, 3, 4, 6, 12, 29, 58, 87, 116, 127, 174, 254, 348, 381, 479, 508, 762, 958, 1437, 1524, 1916, 2874, 3683, 5748, 7366, 11049, 13891, 14732, 22098, 27782, 41673, 44196, 55564, 60833, 83346, 121666, 166692, 182499, 243332, 364998, 729996, 1764157, 3528314, 5292471, 7056628, 10584942, 21169884]

約数ペア:

[(1, 21169884), (2, 10584942), (3, 7056628), (4, 5292471), (6, 3528314), (12, 1764157), (29, 729996), (58, 364998), (87, 243332), (116, 182499), (127, 166692), (174, 121666), (254, 83346), (348, 60833), (381, 55564), (479, 44196), (508, 41673), (762, 27782), (958, 22098), (1437, 14732), (1524, 13891), (1916, 11049), (2874, 7366), (3683, 5748)]