21431768

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{269}}^1\times {\mathrm{433}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 42184800

約数和(自身を除く): 20753032

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 269, 433, 538, 866, 1076, 1732, 2152, 3464, 6187, 9959, 12374, 19918, 24748, 39836, 49496, 79672, 116477, 232954, 465908, 931816, 2678971, 5357942, 10715884, 21431768]

約数ペア:

[(1, 21431768), (2, 10715884), (4, 5357942), (8, 2678971), (23, 931816), (46, 465908), (92, 232954), (184, 116477), (269, 79672), (433, 49496), (538, 39836), (866, 24748), (1076, 19918), (1732, 12374), (2152, 9959), (3464, 6187)]