211405965

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{2027}}^1$

素因数の和:2461

約数の個数: 32

約数和(自身を含む): 359199360

約数和(自身を除く): 147793395

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 409, 1227, 2027, 2045, 6081, 6135, 6953, 10135, 20859, 30405, 34459, 34765, 103377, 104295, 172295, 516885, 829043, 2487129, 4145215, 12435645, 14093731, 42281193, 70468655, 211405965]

約数ペア:

[(1, 211405965), (3, 70468655), (5, 42281193), (15, 14093731), (17, 12435645), (51, 4145215), (85, 2487129), (255, 829043), (409, 516885), (1227, 172295), (2027, 104295), (2045, 103377), (6081, 34765), (6135, 34459), (6953, 30405), (10135, 20859)]