21491082404

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2011}}^1\times {\mathrm{2729}}^1$

素因数の和:4844

約数の個数: 48

約数和(自身を含む): 41525265600

約数和(自身を除く): 20034183196

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 2011, 2729, 3916, 4022, 5458, 8044, 10916, 22121, 30019, 44242, 60038, 88484, 120076, 178979, 242881, 357958, 485762, 715916, 971524, 1968769, 2671691, 3937538, 5343382, 5488019, 7875076, 10686764, 10976038, 21952076, 60368209, 120736418, 241472836, 488433691, 976867382, 1953734764, 5372770601, 10745541202, 21491082404]

約数ペア:

[(1, 21491082404), (2, 10745541202), (4, 5372770601), (11, 1953734764), (22, 976867382), (44, 488433691), (89, 241472836), (178, 120736418), (356, 60368209), (979, 21952076), (1958, 10976038), (2011, 10686764), (2729, 7875076), (3916, 5488019), (4022, 5343382), (5458, 3937538), (8044, 2671691), (10916, 1968769), (22121, 971524), (30019, 715916), (44242, 485762), (60038, 357958), (88484, 242881), (120076, 178979)]