215032041

素因数分解:

$3^2\times 7^2\times {\mathrm{487601}}^1$

素因数の和:487621

約数の個数: 18

約数和(自身を含む): 361313082

約数和(自身を除く): 146281041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 487601, 1462803, 3413207, 4388409, 10239621, 23892449, 30718863, 71677347, 215032041]

約数ペア:

[(1, 215032041), (3, 71677347), (7, 30718863), (9, 23892449), (21, 10239621), (49, 4388409), (63, 3413207), (147, 1462803), (441, 487601)]