28840413

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{71}}^1$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 48162816

約数和(自身を除く): 19322403

約数列:

[1, 3, 7, 21, 23, 29, 69, 71, 87, 161, 203, 213, 483, 497, 609, 667, 841, 1491, 1633, 2001, 2059, 2523, 4669, 4899, 5887, 6177, 11431, 14007, 14413, 17661, 19343, 34293, 43239, 47357, 58029, 59711, 135401, 142071, 179133, 331499, 406203, 417977, 994497, 1253931, 1373353, 4120059, 9613471, 28840413]

約数ペア:

[(1, 28840413), (3, 9613471), (7, 4120059), (21, 1373353), (23, 1253931), (29, 994497), (69, 417977), (71, 406203), (87, 331499), (161, 179133), (203, 142071), (213, 135401), (483, 59711), (497, 58029), (609, 47357), (667, 43239), (841, 34293), (1491, 19343), (1633, 17661), (2001, 14413), (2059, 14007), (2523, 11431), (4669, 6177), (4899, 5887)]