328943979

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21139}}^1$

素因数の和:21184

約数の個数: 48

約数和(自身を含む): 615596800

約数和(自身を除く): 286652821

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1197, 1729, 2223, 5187, 15561, 21139, 63417, 147973, 190251, 274807, 401641, 443919, 824421, 1204923, 1331757, 1923649, 2473263, 2811487, 3614769, 5221333, 5770947, 8434461, 15663999, 17312841, 25303383, 36549331, 46991997, 109647993, 328943979]

約数ペア:

[(1, 328943979), (3, 109647993), (7, 46991997), (9, 36549331), (13, 25303383), (19, 17312841), (21, 15663999), (39, 8434461), (57, 5770947), (63, 5221333), (91, 3614769), (117, 2811487), (133, 2473263), (171, 1923649), (247, 1331757), (273, 1204923), (399, 824421), (741, 443919), (819, 401641), (1197, 274807), (1729, 190251), (2223, 147973), (5187, 63417), (15561, 21139)]