21431008

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{10979}}^1$

素因数の和:11050

約数の個数: 24

約数和(自身を含む): 42887880

約数和(自身を除く): 21456872

約数列:

[1, 2, 4, 8, 16, 32, 61, 122, 244, 488, 976, 1952, 10979, 21958, 43916, 87832, 175664, 351328, 669719, 1339438, 2678876, 5357752, 10715504, 21431008]

約数ペア:

[(1, 21431008), (2, 10715504), (4, 5357752), (8, 2678876), (16, 1339438), (32, 669719), (61, 351328), (122, 175664), (244, 87832), (488, 43916), (976, 21958), (1952, 10979)]