20961744

素因数分解:

$2^4\times 3^1\times {\mathrm{229}}^1\times {\mathrm{1907}}^1$

素因数の和:2147

約数の個数: 40

約数和(自身を含む): 54416160

約数和(自身を除く): 33454416

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 229, 458, 687, 916, 1374, 1832, 1907, 2748, 3664, 3814, 5496, 5721, 7628, 10992, 11442, 15256, 22884, 30512, 45768, 91536, 436703, 873406, 1310109, 1746812, 2620218, 3493624, 5240436, 6987248, 10480872, 20961744]

約数ペア:

[(1, 20961744), (2, 10480872), (3, 6987248), (4, 5240436), (6, 3493624), (8, 2620218), (12, 1746812), (16, 1310109), (24, 873406), (48, 436703), (229, 91536), (458, 45768), (687, 30512), (916, 22884), (1374, 15256), (1832, 11442), (1907, 10992), (2748, 7628), (3664, 5721), (3814, 5496)]