21131808770

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1277}}^1\times {\mathrm{40361}}^1$

素因数の和:41686

約数の個数: 32

約数和(自身を含む): 38996472816

約数和(自身を除く): 17864664046

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 1277, 2554, 6385, 12770, 40361, 52357, 80722, 104714, 201805, 261785, 403610, 523570, 1654801, 3309602, 8274005, 16548010, 51540997, 103081994, 257704985, 515409970, 2113180877, 4226361754, 10565904385, 21131808770]

約数ペア:

[(1, 21131808770), (2, 10565904385), (5, 4226361754), (10, 2113180877), (41, 515409970), (82, 257704985), (205, 103081994), (410, 51540997), (1277, 16548010), (2554, 8274005), (6385, 3309602), (12770, 1654801), (40361, 523570), (52357, 403610), (80722, 261785), (104714, 201805)]