20122746

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{563}}^1$

素因数の和:635

約数の個数: 64

約数和(自身を含む): 49379328

約数和(自身を除く): 29256582

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 37, 42, 46, 69, 74, 111, 138, 161, 222, 259, 322, 483, 518, 563, 777, 851, 966, 1126, 1554, 1689, 1702, 2553, 3378, 3941, 5106, 5957, 7882, 11823, 11914, 12949, 17871, 20831, 23646, 25898, 35742, 38847, 41662, 62493, 77694, 90643, 124986, 145817, 181286, 271929, 291634, 437451, 479113, 543858, 874902, 958226, 1437339, 2874678, 3353791, 6707582, 10061373, 20122746]

約数ペア:

[(1, 20122746), (2, 10061373), (3, 6707582), (6, 3353791), (7, 2874678), (14, 1437339), (21, 958226), (23, 874902), (37, 543858), (42, 479113), (46, 437451), (69, 291634), (74, 271929), (111, 181286), (138, 145817), (161, 124986), (222, 90643), (259, 77694), (322, 62493), (483, 41662), (518, 38847), (563, 35742), (777, 25898), (851, 23646), (966, 20831), (1126, 17871), (1554, 12949), (1689, 11914), (1702, 11823), (2553, 7882), (3378, 5957), (3941, 5106)]