21032590

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1193}}^1$

素因数の和:1284

約数の個数: 32

約数和(自身を含む): 39717216

約数和(自身を除く): 18684626

約数列:

[1, 2, 5, 10, 41, 43, 82, 86, 205, 215, 410, 430, 1193, 1763, 2386, 3526, 5965, 8815, 11930, 17630, 48913, 51299, 97826, 102598, 244565, 256495, 489130, 512990, 2103259, 4206518, 10516295, 21032590]

約数ペア:

[(1, 21032590), (2, 10516295), (5, 4206518), (10, 2103259), (41, 512990), (43, 489130), (82, 256495), (86, 244565), (205, 102598), (215, 97826), (410, 51299), (430, 48913), (1193, 17630), (1763, 11930), (2386, 8815), (3526, 5965)]