20790719558

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{248461}}^1$

素因数の和:248652

約数の個数: 32

約数和(自身を含む): 36732622080

約数和(自身を除く): 15941902522

約数列:

[1, 2, 7, 14, 43, 86, 139, 278, 301, 602, 973, 1946, 5977, 11954, 41839, 83678, 248461, 496922, 1739227, 3478454, 10683823, 21367646, 34536079, 69072158, 74786761, 149573522, 241752553, 483505106, 1485051397, 2970102794, 10395359779, 20790719558]

約数ペア:

[(1, 20790719558), (2, 10395359779), (7, 2970102794), (14, 1485051397), (43, 483505106), (86, 241752553), (139, 149573522), (278, 74786761), (301, 69072158), (602, 34536079), (973, 21367646), (1946, 10683823), (5977, 3478454), (11954, 1739227), (41839, 496922), (83678, 248461)]