21529089

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{223}}^1\times {\mathrm{631}}^1$

素因数の和:877

約数の個数: 24

約数和(自身を含む): 33126912

約数和(自身を除く): 11597823

約数列:

[1, 3, 9, 17, 51, 153, 223, 631, 669, 1893, 2007, 3791, 5679, 10727, 11373, 32181, 34119, 96543, 140713, 422139, 1266417, 2392121, 7176363, 21529089]

約数ペア:

[(1, 21529089), (3, 7176363), (9, 2392121), (17, 1266417), (51, 422139), (153, 140713), (223, 96543), (631, 34119), (669, 32181), (1893, 11373), (2007, 10727), (3791, 5679)]