21834020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1063}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 50050560

約数和(自身を除く): 28216540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1063, 1580, 2054, 2126, 4108, 4252, 5135, 5315, 10270, 10630, 13819, 20540, 21260, 27638, 55276, 69095, 83977, 138190, 167954, 276380, 335908, 419885, 839770, 1091701, 1679540, 2183402, 4366804, 5458505, 10917010, 21834020]

約数ペア:

[(1, 21834020), (2, 10917010), (4, 5458505), (5, 4366804), (10, 2183402), (13, 1679540), (20, 1091701), (26, 839770), (52, 419885), (65, 335908), (79, 276380), (130, 167954), (158, 138190), (260, 83977), (316, 69095), (395, 55276), (790, 27638), (1027, 21260), (1063, 20540), (1580, 13819), (2054, 10630), (2126, 10270), (4108, 5315), (4252, 5135)]