21520512204

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{328397}}^1$

素因数の和:328574

約数の個数: 48

約数和(自身を含む): 51787051008

約数和(自身を除く): 30266538804

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 127, 129, 172, 254, 258, 381, 508, 516, 762, 1524, 5461, 10922, 16383, 21844, 32766, 65532, 328397, 656794, 985191, 1313588, 1970382, 3940764, 14121071, 28242142, 41706419, 42363213, 56484284, 83412838, 84726426, 125119257, 166825676, 169452852, 250238514, 500477028, 1793376017, 3586752034, 5380128051, 7173504068, 10760256102, 21520512204]

約数ペア:

[(1, 21520512204), (2, 10760256102), (3, 7173504068), (4, 5380128051), (6, 3586752034), (12, 1793376017), (43, 500477028), (86, 250238514), (127, 169452852), (129, 166825676), (172, 125119257), (254, 84726426), (258, 83412838), (381, 56484284), (508, 42363213), (516, 41706419), (762, 28242142), (1524, 14121071), (5461, 3940764), (10922, 1970382), (16383, 1313588), (21844, 985191), (32766, 656794), (65532, 328397)]