215492739

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1877}}^1$

素因数の和:1976

約数の個数: 48

約数和(自身を含む): 369950976

約数和(自身を除く): 154458237

約数列:

[1, 3, 7, 11, 21, 33, 49, 71, 77, 147, 213, 231, 497, 539, 781, 1491, 1617, 1877, 2343, 3479, 5467, 5631, 10437, 13139, 16401, 20647, 38269, 39417, 61941, 91973, 114807, 133267, 144529, 275919, 399801, 433587, 932869, 1011703, 1465937, 2798607, 3035109, 4397811, 6530083, 10261559, 19590249, 30784677, 71830913, 215492739]

約数ペア:

[(1, 215492739), (3, 71830913), (7, 30784677), (11, 19590249), (21, 10261559), (33, 6530083), (49, 4397811), (71, 3035109), (77, 2798607), (147, 1465937), (213, 1011703), (231, 932869), (497, 433587), (539, 399801), (781, 275919), (1491, 144529), (1617, 133267), (1877, 114807), (2343, 91973), (3479, 61941), (5467, 39417), (5631, 38269), (10437, 20647), (13139, 16401)]