21000455498

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2969}}^1\times {\mathrm{7477}}^1$

素因数の和:10502

約数の個数: 32

約数和(自身を含む): 35180101440

約数和(自身を除く): 14179645942

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 2969, 5938, 7477, 14954, 32659, 65318, 82247, 127667, 164494, 255334, 321511, 643022, 1404337, 2808674, 3536621, 7073242, 22199213, 44398426, 244191343, 488382686, 954566159, 1909132318, 10500227749, 21000455498]

約数ペア:

[(1, 21000455498), (2, 10500227749), (11, 1909132318), (22, 954566159), (43, 488382686), (86, 244191343), (473, 44398426), (946, 22199213), (2969, 7073242), (5938, 3536621), (7477, 2808674), (14954, 1404337), (32659, 643022), (65318, 321511), (82247, 255334), (127667, 164494)]