2019905979

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{55631}}^1$

素因数の和:55680

約数の個数: 48

約数和(自身を含む): 3551546880

約数和(自身を除く): 1531640901

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 91, 133, 147, 247, 273, 399, 637, 741, 931, 1729, 1911, 2793, 5187, 12103, 36309, 55631, 166893, 389417, 723203, 1056989, 1168251, 2169609, 2725919, 3170967, 5062421, 7398923, 8177757, 13740857, 15187263, 22196769, 35436947, 41222571, 51792461, 96185999, 106310841, 155377383, 288557997, 673301993, 2019905979]

約数ペア:

[(1, 2019905979), (3, 673301993), (7, 288557997), (13, 155377383), (19, 106310841), (21, 96185999), (39, 51792461), (49, 41222571), (57, 35436947), (91, 22196769), (133, 15187263), (147, 13740857), (247, 8177757), (273, 7398923), (399, 5062421), (637, 3170967), (741, 2725919), (931, 2169609), (1729, 1168251), (1911, 1056989), (2793, 723203), (5187, 389417), (12103, 166893), (36309, 55631)]