21680230

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{15161}}^1$

素因数の和:15192

約数の個数: 32

約数和(自身を含む): 45849888

約数和(自身を除く): 24169658

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 15161, 30322, 75805, 151610, 166771, 197093, 333542, 394186, 833855, 985465, 1667710, 1970930, 2168023, 4336046, 10840115, 21680230]

約数ペア:

[(1, 21680230), (2, 10840115), (5, 4336046), (10, 2168023), (11, 1970930), (13, 1667710), (22, 985465), (26, 833855), (55, 394186), (65, 333542), (110, 197093), (130, 166771), (143, 151610), (286, 75805), (715, 30322), (1430, 15161)]