638943657

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{2153}}^1$

素因数の和:2230

約数の個数: 48

約数和(自身を含む): 1029163968

約数和(自身を除く): 390220311

約数列:

[1, 3, 11, 17, 23, 33, 51, 69, 187, 253, 391, 529, 561, 759, 1173, 1587, 2153, 4301, 5819, 6459, 8993, 12903, 17457, 23683, 26979, 36601, 49519, 71049, 98923, 109803, 148557, 296769, 402611, 544709, 841823, 1138937, 1207833, 1634127, 2525469, 3416811, 9260053, 12528307, 19361929, 27780159, 37584921, 58085787, 212981219, 638943657]

約数ペア:

[(1, 638943657), (3, 212981219), (11, 58085787), (17, 37584921), (23, 27780159), (33, 19361929), (51, 12528307), (69, 9260053), (187, 3416811), (253, 2525469), (391, 1634127), (529, 1207833), (561, 1138937), (759, 841823), (1173, 544709), (1587, 402611), (2153, 296769), (4301, 148557), (5819, 109803), (6459, 98923), (8993, 71049), (12903, 49519), (17457, 36601), (23683, 26979)]