21186688

素因数分解:

$2^7\times {\mathrm{103}}^1\times {\mathrm{1607}}^1$

素因数の和:1724

約数の個数: 32

約数和(自身を含む): 42644160

約数和(自身を除く): 21457472

約数列:

[1, 2, 4, 8, 16, 32, 64, 103, 128, 206, 412, 824, 1607, 1648, 3214, 3296, 6428, 6592, 12856, 13184, 25712, 51424, 102848, 165521, 205696, 331042, 662084, 1324168, 2648336, 5296672, 10593344, 21186688]

約数ペア:

[(1, 21186688), (2, 10593344), (4, 5296672), (8, 2648336), (16, 1324168), (32, 662084), (64, 331042), (103, 205696), (128, 165521), (206, 102848), (412, 51424), (824, 25712), (1607, 13184), (1648, 12856), (3214, 6592), (3296, 6428)]