21757568

素因数分解:

$2^7\times 7^2\times {\mathrm{3469}}^1$

素因数の和:3497

約数の個数: 48

約数和(自身を含む): 50436450

約数和(自身を除く): 28678882

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 3469, 6272, 6938, 13876, 24283, 27752, 48566, 55504, 97132, 111008, 169981, 194264, 222016, 339962, 388528, 444032, 679924, 777056, 1359848, 1554112, 2719696, 3108224, 5439392, 10878784, 21757568]

約数ペア:

[(1, 21757568), (2, 10878784), (4, 5439392), (7, 3108224), (8, 2719696), (14, 1554112), (16, 1359848), (28, 777056), (32, 679924), (49, 444032), (56, 388528), (64, 339962), (98, 222016), (112, 194264), (128, 169981), (196, 111008), (224, 97132), (392, 55504), (448, 48566), (784, 27752), (896, 24283), (1568, 13876), (3136, 6938), (3469, 6272)]