21203637

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{769}}^1$

素因数の和:893

約数の個数: 32

約数和(自身を含む): 35185920

約数和(自身を除く): 13982283

約数列:

[1, 3, 7, 13, 21, 39, 91, 101, 273, 303, 707, 769, 1313, 2121, 2307, 3939, 5383, 9191, 9997, 16149, 27573, 29991, 69979, 77669, 209937, 233007, 543683, 1009697, 1631049, 3029091, 7067879, 21203637]

約数ペア:

[(1, 21203637), (3, 7067879), (7, 3029091), (13, 1631049), (21, 1009697), (39, 543683), (91, 233007), (101, 209937), (273, 77669), (303, 69979), (707, 29991), (769, 27573), (1313, 16149), (2121, 9997), (2307, 9191), (3939, 5383)]