28139445

素因数分解:

$3^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{991}}^1$

素因数の和:1633

約数の個数: 24

約数和(自身を含む): 48901632

約数和(自身を除く): 20762187

約数列:

[1, 3, 5, 9, 15, 45, 631, 991, 1893, 2973, 3155, 4955, 5679, 8919, 9465, 14865, 28395, 44595, 625321, 1875963, 3126605, 5627889, 9379815, 28139445]

約数ペア:

[(1, 28139445), (3, 9379815), (5, 5627889), (9, 3126605), (15, 1875963), (45, 625321), (631, 44595), (991, 28395), (1893, 14865), (2973, 9465), (3155, 8919), (4955, 5679)]