221997568

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{33353}}^1$

素因数の和:33384

約数の個数: 40

約数和(自身を含む): 477695988

約数和(自身を除く): 255698420

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 3328, 6656, 33353, 66706, 133412, 266824, 433589, 533648, 867178, 1067296, 1734356, 2134592, 3468712, 4269184, 6937424, 8538368, 13874848, 17076736, 27749696, 55499392, 110998784, 221997568]

約数ペア:

[(1, 221997568), (2, 110998784), (4, 55499392), (8, 27749696), (13, 17076736), (16, 13874848), (26, 8538368), (32, 6937424), (52, 4269184), (64, 3468712), (104, 2134592), (128, 1734356), (208, 1067296), (256, 867178), (416, 533648), (512, 433589), (832, 266824), (1664, 133412), (3328, 66706), (6656, 33353)]