20693504

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{3109}}^1$

素因数の和:3140

約数の個数: 40

約数和(自身を含む): 44541420

約数和(自身を除く): 23847916

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1664, 3109, 3328, 6218, 6656, 12436, 24872, 40417, 49744, 80834, 99488, 161668, 198976, 323336, 397952, 646672, 795904, 1293344, 1591808, 2586688, 5173376, 10346752, 20693504]

約数ペア:

[(1, 20693504), (2, 10346752), (4, 5173376), (8, 2586688), (13, 1591808), (16, 1293344), (26, 795904), (32, 646672), (52, 397952), (64, 323336), (104, 198976), (128, 161668), (208, 99488), (256, 80834), (416, 49744), (512, 40417), (832, 24872), (1664, 12436), (3109, 6656), (3328, 6218)]