21553323

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{389}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 33246720

約数和(自身を除く): 11693397

約数列:

[1, 3, 11, 23, 33, 69, 73, 219, 253, 389, 759, 803, 1167, 1679, 2409, 4279, 5037, 8947, 12837, 18469, 26841, 28397, 55407, 85191, 98417, 295251, 312367, 653131, 937101, 1959393, 7184441, 21553323]

約数ペア:

[(1, 21553323), (3, 7184441), (11, 1959393), (23, 937101), (33, 653131), (69, 312367), (73, 295251), (219, 98417), (253, 85191), (389, 55407), (759, 28397), (803, 26841), (1167, 18469), (1679, 12837), (2409, 8947), (4279, 5037)]