64406979

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4139}}^1$

素因数の和:4184

約数の個数: 48

約数和(自身を含む): 120556800

約数和(自身を除く): 56149821

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, 4139, 5187, 12417, 15561, 28973, 37251, 53807, 78641, 86919, 161421, 235923, 260757, 376649, 484263, 550487, 707769, 1022333, 1129947, 1651461, 3066999, 3389841, 4954383, 7156331, 9200997, 21468993, 64406979]

約数ペア:

[(1, 64406979), (3, 21468993), (7, 9200997), (9, 7156331), (13, 4954383), (19, 3389841), (21, 3066999), (39, 1651461), (57, 1129947), (63, 1022333), (91, 707769), (117, 550487), (133, 484263), (171, 376649), (247, 260757), (273, 235923), (399, 161421), (741, 86919), (819, 78641), (1197, 53807), (1729, 37251), (2223, 28973), (4139, 15561), (5187, 12417)]