18158608

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1303}}^1$

素因数の和:1391

約数の個数: 40

約数和(自身を含む): 38483648

約数和(自身を除く): 20325040

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1303, 1742, 2606, 3484, 5212, 6968, 10424, 13936, 16939, 20848, 33878, 67756, 87301, 135512, 174602, 271024, 349204, 698408, 1134913, 1396816, 2269826, 4539652, 9079304, 18158608]

約数ペア:

[(1, 18158608), (2, 9079304), (4, 4539652), (8, 2269826), (13, 1396816), (16, 1134913), (26, 698408), (52, 349204), (67, 271024), (104, 174602), (134, 135512), (208, 87301), (268, 67756), (536, 33878), (871, 20848), (1072, 16939), (1303, 13936), (1742, 10424), (2606, 6968), (3484, 5212)]