16819278

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 40212480

約数和(自身を除く): 23393202

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 67, 86, 129, 134, 139, 201, 258, 278, 301, 402, 417, 469, 602, 834, 903, 938, 973, 1407, 1806, 1946, 2814, 2881, 2919, 5762, 5838, 5977, 8643, 9313, 11954, 17286, 17931, 18626, 20167, 27939, 35862, 40334, 41839, 55878, 60501, 65191, 83678, 121002, 125517, 130382, 195573, 251034, 391146, 400459, 800918, 1201377, 2402754, 2803213, 5606426, 8409639, 16819278]

約数ペア:

[(1, 16819278), (2, 8409639), (3, 5606426), (6, 2803213), (7, 2402754), (14, 1201377), (21, 800918), (42, 400459), (43, 391146), (67, 251034), (86, 195573), (129, 130382), (134, 125517), (139, 121002), (201, 83678), (258, 65191), (278, 60501), (301, 55878), (402, 41839), (417, 40334), (469, 35862), (602, 27939), (834, 20167), (903, 18626), (938, 17931), (973, 17286), (1407, 11954), (1806, 9313), (1946, 8643), (2814, 5977), (2881, 5838), (2919, 5762)]