21340683

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 38578176

約数和(自身を除く): 17237493

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 71, 91, 117, 213, 273, 367, 497, 639, 819, 923, 1101, 1491, 2569, 2769, 3303, 4473, 4771, 6461, 7707, 8307, 14313, 19383, 23121, 26057, 33397, 42939, 58149, 78171, 100191, 182399, 234513, 300573, 338741, 547197, 1016223, 1641591, 2371187, 3048669, 7113561, 21340683]

約数ペア:

[(1, 21340683), (3, 7113561), (7, 3048669), (9, 2371187), (13, 1641591), (21, 1016223), (39, 547197), (63, 338741), (71, 300573), (91, 234513), (117, 182399), (213, 100191), (273, 78171), (367, 58149), (497, 42939), (639, 33397), (819, 26057), (923, 23121), (1101, 19383), (1491, 14313), (2569, 8307), (2769, 7707), (3303, 6461), (4473, 4771)]