28531563

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:283

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 12940437

約数列:

[1, 3, 29, 31, 71, 87, 93, 149, 213, 447, 899, 2059, 2201, 2697, 4321, 4619, 6177, 6603, 10579, 12963, 13857, 31737, 63829, 133951, 191487, 306791, 327949, 401853, 920373, 983847, 9510521, 28531563]

約数ペア:

[(1, 28531563), (3, 9510521), (29, 983847), (31, 920373), (71, 401853), (87, 327949), (93, 306791), (149, 191487), (213, 133951), (447, 63829), (899, 31737), (2059, 13857), (2201, 12963), (2697, 10579), (4321, 6603), (4619, 6177)]