21157512

素因数分解:

$2^3\times 3^1\times {\mathrm{271}}^1\times {\mathrm{3253}}^1$

素因数の和:3533

約数の個数: 32

約数和(自身を含む): 53105280

約数和(自身を除く): 31947768

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 271, 542, 813, 1084, 1626, 2168, 3252, 3253, 6504, 6506, 9759, 13012, 19518, 26024, 39036, 78072, 881563, 1763126, 2644689, 3526252, 5289378, 7052504, 10578756, 21157512]

約数ペア:

[(1, 21157512), (2, 10578756), (3, 7052504), (4, 5289378), (6, 3526252), (8, 2644689), (12, 1763126), (24, 881563), (271, 78072), (542, 39036), (813, 26024), (1084, 19518), (1626, 13012), (2168, 9759), (3252, 6506), (3253, 6504)]