1211985

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1171}}^1$

素因数の和:1205

約数の個数: 24

約数和(自身を含む): 2193984

約数和(自身を除く): 981999

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 1171, 3513, 5855, 10539, 17565, 26933, 52695, 80799, 134665, 242397, 403995, 1211985]

約数ペア:

[(1, 1211985), (3, 403995), (5, 242397), (9, 134665), (15, 80799), (23, 52695), (45, 26933), (69, 17565), (115, 10539), (207, 5855), (345, 3513), (1035, 1171)]