28871385

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2141}}^1$

素因数の和:2209

約数の個数: 32

約数和(自身を含む): 49351680

約数和(自身を除く): 20480295

約数列:

[1, 3, 5, 15, 29, 31, 87, 93, 145, 155, 435, 465, 899, 2141, 2697, 4495, 6423, 10705, 13485, 32115, 62089, 66371, 186267, 199113, 310445, 331855, 931335, 995565, 1924759, 5774277, 9623795, 28871385]

約数ペア:

[(1, 28871385), (3, 9623795), (5, 5774277), (15, 1924759), (29, 995565), (31, 931335), (87, 331855), (93, 310445), (145, 199113), (155, 186267), (435, 66371), (465, 62089), (899, 32115), (2141, 13485), (2697, 10705), (4495, 6423)]