20909056

素因数分解:

$2^{10}\times 7^1\times {\mathrm{2917}}^1$

素因数の和:2944

約数の個数: 44

約数和(自身を含む): 47785168

約数和(自身を除く): 26876112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 2917, 3584, 5834, 7168, 11668, 20419, 23336, 40838, 46672, 81676, 93344, 163352, 186688, 326704, 373376, 653408, 746752, 1306816, 1493504, 2613632, 2987008, 5227264, 10454528, 20909056]

約数ペア:

[(1, 20909056), (2, 10454528), (4, 5227264), (7, 2987008), (8, 2613632), (14, 1493504), (16, 1306816), (28, 746752), (32, 653408), (56, 373376), (64, 326704), (112, 186688), (128, 163352), (224, 93344), (256, 81676), (448, 46672), (512, 40838), (896, 23336), (1024, 20419), (1792, 11668), (2917, 7168), (3584, 5834)]