20121247972

素因数分解:

$2^2\times 7^1\times {\mathrm{12743}}^1\times {\mathrm{56393}}^1$

素因数の和:69147

約数の個数: 24

約数和(自身を含む): 40246367616

約数和(自身を除く): 20125119644

約数列:

[1, 2, 4, 7, 14, 28, 12743, 25486, 50972, 56393, 89201, 112786, 178402, 225572, 356804, 394751, 789502, 1579004, 718615999, 1437231998, 2874463996, 5030311993, 10060623986, 20121247972]

約数ペア:

[(1, 20121247972), (2, 10060623986), (4, 5030311993), (7, 2874463996), (14, 1437231998), (28, 718615999), (12743, 1579004), (25486, 789502), (50972, 394751), (56393, 356804), (89201, 225572), (112786, 178402)]