21866572

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{4621}}^1$

素因数の和:4658

約数の個数: 36

約数和(自身を含む): 47366256

約数和(自身を除く): 25499684

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 676, 1183, 2366, 4621, 4732, 9242, 18484, 32347, 60073, 64694, 120146, 129388, 240292, 420511, 780949, 841022, 1561898, 1682044, 3123796, 5466643, 10933286, 21866572]

約数ペア:

[(1, 21866572), (2, 10933286), (4, 5466643), (7, 3123796), (13, 1682044), (14, 1561898), (26, 841022), (28, 780949), (52, 420511), (91, 240292), (169, 129388), (182, 120146), (338, 64694), (364, 60073), (676, 32347), (1183, 18484), (2366, 9242), (4621, 4732)]