20778421874

素因数分解:

$2^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{7311197}}^1$

素因数の和:7311242

約数の個数: 24

約数和(自身を含む): 37506445740

約数和(自身を除く): 16728023866

約数列:

[1, 2, 7, 14, 29, 49, 58, 98, 203, 406, 1421, 2842, 7311197, 14622394, 51178379, 102356758, 212024713, 358248653, 424049426, 716497306, 1484172991, 2968345982, 10389210937, 20778421874]

約数ペア:

[(1, 20778421874), (2, 10389210937), (7, 2968345982), (14, 1484172991), (29, 716497306), (49, 424049426), (58, 358248653), (98, 212024713), (203, 102356758), (406, 51178379), (1421, 14622394), (2842, 7311197)]