20580147

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{2029}}^1$

素因数の和:2072

約数の個数: 36

約数和(自身を含む): 36101520

約数和(自身を除く): 15521373

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 1127, 1449, 2029, 3381, 6087, 10143, 14203, 18261, 42609, 46667, 99421, 127827, 140001, 298263, 326669, 420003, 894789, 980007, 2286683, 2940021, 6860049, 20580147]

約数ペア:

[(1, 20580147), (3, 6860049), (7, 2940021), (9, 2286683), (21, 980007), (23, 894789), (49, 420003), (63, 326669), (69, 298263), (147, 140001), (161, 127827), (207, 99421), (441, 46667), (483, 42609), (1127, 18261), (1449, 14203), (2029, 10143), (3381, 6087)]