20516874

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 49821696

約数和(自身を除く): 29304822

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 67, 69, 134, 138, 161, 201, 317, 322, 402, 469, 483, 634, 938, 951, 966, 1407, 1541, 1902, 2219, 2814, 3082, 4438, 4623, 6657, 7291, 9246, 10787, 13314, 14582, 21239, 21574, 21873, 32361, 42478, 43746, 51037, 63717, 64722, 102074, 127434, 148673, 153111, 297346, 306222, 446019, 488497, 892038, 976994, 1465491, 2930982, 3419479, 6838958, 10258437, 20516874]

約数ペア:

[(1, 20516874), (2, 10258437), (3, 6838958), (6, 3419479), (7, 2930982), (14, 1465491), (21, 976994), (23, 892038), (42, 488497), (46, 446019), (67, 306222), (69, 297346), (134, 153111), (138, 148673), (161, 127434), (201, 102074), (317, 64722), (322, 63717), (402, 51037), (469, 43746), (483, 42478), (634, 32361), (938, 21873), (951, 21574), (966, 21239), (1407, 14582), (1541, 13314), (1902, 10787), (2219, 9246), (2814, 7291), (3082, 6657), (4438, 4623)]