39881247

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 66211200

約数和(自身を除く): 26329953

約数列:

[1, 3, 7, 19, 21, 49, 57, 109, 131, 133, 147, 327, 393, 399, 763, 917, 931, 2071, 2289, 2489, 2751, 2793, 5341, 6213, 6419, 7467, 14279, 14497, 16023, 17423, 19257, 42837, 43491, 52269, 99953, 101479, 121961, 271301, 299859, 304437, 365883, 699671, 813903, 1899107, 2099013, 5697321, 13293749, 39881247]

約数ペア:

[(1, 39881247), (3, 13293749), (7, 5697321), (19, 2099013), (21, 1899107), (49, 813903), (57, 699671), (109, 365883), (131, 304437), (133, 299859), (147, 271301), (327, 121961), (393, 101479), (399, 99953), (763, 52269), (917, 43491), (931, 42837), (2071, 19257), (2289, 17423), (2489, 16023), (2751, 14497), (2793, 14279), (5341, 7467), (6213, 6419)]