21292227

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1039}}^1$

素因数の和:1085

約数の個数: 40

約数和(自身を含む): 36241920

約数和(自身を除く): 14949693

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 81, 99, 207, 253, 297, 621, 759, 891, 1039, 1863, 2277, 3117, 6831, 9351, 11429, 20493, 23897, 28053, 34287, 71691, 84159, 102861, 215073, 262867, 308583, 645219, 788601, 925749, 1935657, 2365803, 7097409, 21292227]

約数ペア:

[(1, 21292227), (3, 7097409), (9, 2365803), (11, 1935657), (23, 925749), (27, 788601), (33, 645219), (69, 308583), (81, 262867), (99, 215073), (207, 102861), (253, 84159), (297, 71691), (621, 34287), (759, 28053), (891, 23897), (1039, 20493), (1863, 11429), (2277, 9351), (3117, 6831)]