21854084

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10993}}^1$

素因数の和:11075

約数の個数: 24

約数和(自身を含む): 44327808

約数和(自身を除く): 22473724

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10993, 21986, 43972, 76951, 153902, 307804, 780503, 1561006, 3122012, 5463521, 10927042, 21854084]

約数ペア:

[(1, 21854084), (2, 10927042), (4, 5463521), (7, 3122012), (14, 1561006), (28, 780503), (71, 307804), (142, 153902), (284, 76951), (497, 43972), (994, 21986), (1988, 10993)]