311906907

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:345

約数の個数: 72

約数和(自身を含む): 527567040

約数和(自身を除く): 215660133

約数列:

[1, 3, 9, 13, 19, 39, 43, 57, 117, 129, 169, 171, 247, 251, 387, 507, 559, 741, 753, 817, 1521, 1677, 2223, 2259, 2451, 3211, 3263, 4769, 5031, 7267, 7353, 9633, 9789, 10621, 10793, 14307, 21801, 28899, 29367, 31863, 32379, 42419, 42921, 61997, 65403, 95589, 97137, 127257, 138073, 140309, 185991, 205067, 381771, 414219, 420927, 557973, 615201, 805961, 1242657, 1262781, 1824017, 1845603, 2417883, 2665871, 5472051, 7253649, 7997613, 16416153, 23992839, 34656323, 103968969, 311906907]

約数ペア:

[(1, 311906907), (3, 103968969), (9, 34656323), (13, 23992839), (19, 16416153), (39, 7997613), (43, 7253649), (57, 5472051), (117, 2665871), (129, 2417883), (169, 1845603), (171, 1824017), (247, 1262781), (251, 1242657), (387, 805961), (507, 615201), (559, 557973), (741, 420927), (753, 414219), (817, 381771), (1521, 205067), (1677, 185991), (2223, 140309), (2259, 138073), (2451, 127257), (3211, 97137), (3263, 95589), (4769, 65403), (5031, 61997), (7267, 42921), (7353, 42419), (9633, 32379), (9789, 31863), (10621, 29367), (10793, 28899), (14307, 21801)]