21408582

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 47539008

約数和(自身を除く): 26130426

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 169, 258, 338, 491, 507, 559, 982, 1014, 1118, 1473, 1677, 2946, 3354, 6383, 7267, 12766, 14534, 19149, 21113, 21801, 38298, 42226, 43602, 63339, 82979, 126678, 165958, 248937, 274469, 497874, 548938, 823407, 1646814, 3568097, 7136194, 10704291, 21408582]

約数ペア:

[(1, 21408582), (2, 10704291), (3, 7136194), (6, 3568097), (13, 1646814), (26, 823407), (39, 548938), (43, 497874), (78, 274469), (86, 248937), (129, 165958), (169, 126678), (258, 82979), (338, 63339), (491, 43602), (507, 42226), (559, 38298), (982, 21801), (1014, 21113), (1118, 19149), (1473, 14534), (1677, 12766), (2946, 7267), (3354, 6383)]