421655521

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{571}}^1$

素因数の和:733

約数の個数: 32

約数和(自身を含む): 516612096

約数和(自身を除く): 94956575

約数列:

[1, 7, 31, 41, 83, 217, 287, 571, 581, 1271, 2573, 3403, 3997, 8897, 17701, 18011, 23411, 23821, 47393, 105493, 123907, 163877, 331751, 725741, 738451, 1469183, 1943113, 5080187, 10284281, 13601791, 60236503, 421655521]

約数ペア:

[(1, 421655521), (7, 60236503), (31, 13601791), (41, 10284281), (83, 5080187), (217, 1943113), (287, 1469183), (571, 738451), (581, 725741), (1271, 331751), (2573, 163877), (3403, 123907), (3997, 105493), (8897, 47393), (17701, 23821), (18011, 23411)]