20143305

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4919}}^1$

素因数の和:4950

約数の個数: 48

約数和(自身を含む): 42981120

約数和(自身を除く): 22837815

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 4919, 14757, 24595, 34433, 44271, 63947, 73785, 103299, 172165, 191841, 221355, 309897, 319735, 447629, 516495, 575523, 959205, 1342887, 1549485, 2238145, 2877615, 4028661, 6714435, 20143305]

約数ペア:

[(1, 20143305), (3, 6714435), (5, 4028661), (7, 2877615), (9, 2238145), (13, 1549485), (15, 1342887), (21, 959205), (35, 575523), (39, 516495), (45, 447629), (63, 319735), (65, 309897), (91, 221355), (105, 191841), (117, 172165), (195, 103299), (273, 73785), (315, 63947), (455, 44271), (585, 34433), (819, 24595), (1365, 14757), (4095, 4919)]