21730814

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 40974336

約数和(自身を除く): 19243522

約数列:

[1, 2, 7, 14, 23, 31, 46, 49, 62, 98, 161, 217, 311, 322, 434, 622, 713, 1127, 1426, 1519, 2177, 2254, 3038, 4354, 4991, 7153, 9641, 9982, 14306, 15239, 19282, 30478, 34937, 50071, 67487, 69874, 100142, 134974, 221743, 350497, 443486, 472409, 700994, 944818, 1552201, 3104402, 10865407, 21730814]

約数ペア:

[(1, 21730814), (2, 10865407), (7, 3104402), (14, 1552201), (23, 944818), (31, 700994), (46, 472409), (49, 443486), (62, 350497), (98, 221743), (161, 134974), (217, 100142), (311, 69874), (322, 67487), (434, 50071), (622, 34937), (713, 30478), (1127, 19282), (1426, 15239), (1519, 14306), (2177, 9982), (2254, 9641), (3038, 7153), (4354, 4991)]