21797727

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 34383360

約数和(自身を除く): 12585633

約数列:

[1, 3, 7, 21, 59, 73, 177, 219, 241, 413, 511, 723, 1239, 1533, 1687, 4307, 5061, 12921, 14219, 17593, 30149, 42657, 52779, 90447, 99533, 123151, 298599, 369453, 1037987, 3113961, 7265909, 21797727]

約数ペア:

[(1, 21797727), (3, 7265909), (7, 3113961), (21, 1037987), (59, 369453), (73, 298599), (177, 123151), (219, 99533), (241, 90447), (413, 52779), (511, 42657), (723, 30149), (1239, 17593), (1533, 14219), (1687, 12921), (4307, 5061)]