21543081

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 34062336

約数和(自身を除く): 12519255

約数列:

[1, 3, 7, 21, 41, 123, 131, 191, 287, 393, 573, 861, 917, 1337, 2751, 4011, 5371, 7831, 16113, 23493, 25021, 37597, 54817, 75063, 112791, 164451, 175147, 525441, 1025861, 3077583, 7181027, 21543081]

約数ペア:

[(1, 21543081), (3, 7181027), (7, 3077583), (21, 1025861), (41, 525441), (123, 175147), (131, 164451), (191, 112791), (287, 75063), (393, 54817), (573, 37597), (861, 25021), (917, 23493), (1337, 16113), (2751, 7831), (4011, 5371)]