20721408

素因数分解:

$2^8\times 3^1\times {\mathrm{26981}}^1$

素因数の和:27000

約数の個数: 36

約数和(自身を含む): 55151208

約数和(自身を除く): 34429800

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 768, 26981, 53962, 80943, 107924, 161886, 215848, 323772, 431696, 647544, 863392, 1295088, 1726784, 2590176, 3453568, 5180352, 6907136, 10360704, 20721408]

約数ペア:

[(1, 20721408), (2, 10360704), (3, 6907136), (4, 5180352), (6, 3453568), (8, 2590176), (12, 1726784), (16, 1295088), (24, 863392), (32, 647544), (48, 431696), (64, 323772), (96, 215848), (128, 161886), (192, 107924), (256, 80943), (384, 53962), (768, 26981)]