64805979

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23203}}^1$

素因数の和:23239

約数の個数: 24

約数和(自身を含む): 105810240

約数和(自身を除く): 41004261

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 23203, 69609, 162421, 440857, 487263, 1136947, 1322571, 3085999, 3410841, 9257997, 21601993, 64805979]

約数ペア:

[(1, 64805979), (3, 21601993), (7, 9257997), (19, 3410841), (21, 3085999), (49, 1322571), (57, 1136947), (133, 487263), (147, 440857), (399, 162421), (931, 69609), (2793, 23203)]