20459558

素因数分解:

$2^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{313}}^1$

素因数の和:381

約数の個数: 48

約数和(自身を含む): 38659680

約数和(自身を除く): 18200122

約数列:

[1, 2, 7, 14, 23, 29, 46, 49, 58, 98, 161, 203, 313, 322, 406, 626, 667, 1127, 1334, 1421, 2191, 2254, 2842, 4382, 4669, 7199, 9077, 9338, 14398, 15337, 18154, 30674, 32683, 50393, 63539, 65366, 100786, 127078, 208771, 352751, 417542, 444773, 705502, 889546, 1461397, 2922794, 10229779, 20459558]

約数ペア:

[(1, 20459558), (2, 10229779), (7, 2922794), (14, 1461397), (23, 889546), (29, 705502), (46, 444773), (49, 417542), (58, 352751), (98, 208771), (161, 127078), (203, 100786), (313, 65366), (322, 63539), (406, 50393), (626, 32683), (667, 30674), (1127, 18154), (1334, 15337), (1421, 14398), (2191, 9338), (2254, 9077), (2842, 7199), (4382, 4669)]