12421815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{6959}}^1$

素因数の和:6991

約数の個数: 32

約数和(自身を含む): 24053760

約数和(自身を除く): 11631945

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 6959, 20877, 34795, 48713, 104385, 118303, 146139, 243565, 354909, 591515, 730695, 828121, 1774545, 2484363, 4140605, 12421815]

約数ペア:

[(1, 12421815), (3, 4140605), (5, 2484363), (7, 1774545), (15, 828121), (17, 730695), (21, 591515), (35, 354909), (51, 243565), (85, 146139), (105, 118303), (119, 104385), (255, 48713), (357, 34795), (595, 20877), (1785, 6959)]