20461568

素因数分解:

$2^{11}\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 41736240

約数和(自身を除く): 21274672

約数列:

[1, 2, 4, 8, 16, 32, 64, 97, 103, 128, 194, 206, 256, 388, 412, 512, 776, 824, 1024, 1552, 1648, 2048, 3104, 3296, 6208, 6592, 9991, 12416, 13184, 19982, 24832, 26368, 39964, 49664, 52736, 79928, 99328, 105472, 159856, 198656, 210944, 319712, 639424, 1278848, 2557696, 5115392, 10230784, 20461568]

約数ペア:

[(1, 20461568), (2, 10230784), (4, 5115392), (8, 2557696), (16, 1278848), (32, 639424), (64, 319712), (97, 210944), (103, 198656), (128, 159856), (194, 105472), (206, 99328), (256, 79928), (388, 52736), (412, 49664), (512, 39964), (776, 26368), (824, 24832), (1024, 19982), (1552, 13184), (1648, 12416), (2048, 9991), (3104, 6592), (3296, 6208)]