16721784

素因数分解:

$2^3\times 3^2\times {\mathrm{271}}^1\times {\mathrm{857}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 45508320

約数和(自身を除く): 28786536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 271, 542, 813, 857, 1084, 1626, 1714, 2168, 2439, 2571, 3252, 3428, 4878, 5142, 6504, 6856, 7713, 9756, 10284, 15426, 19512, 20568, 30852, 61704, 232247, 464494, 696741, 928988, 1393482, 1857976, 2090223, 2786964, 4180446, 5573928, 8360892, 16721784]

約数ペア:

[(1, 16721784), (2, 8360892), (3, 5573928), (4, 4180446), (6, 2786964), (8, 2090223), (9, 1857976), (12, 1393482), (18, 928988), (24, 696741), (36, 464494), (72, 232247), (271, 61704), (542, 30852), (813, 20568), (857, 19512), (1084, 15426), (1626, 10284), (1714, 9756), (2168, 7713), (2439, 6856), (2571, 6504), (3252, 5142), (3428, 4878)]