21454521

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 32489856

約数和(自身を除く): 11035335

約数列:

[1, 3, 11, 33, 41, 101, 123, 157, 303, 451, 471, 1111, 1353, 1727, 3333, 4141, 5181, 6437, 12423, 15857, 19311, 45551, 47571, 70807, 136653, 174427, 212421, 523281, 650137, 1950411, 7151507, 21454521]

約数ペア:

[(1, 21454521), (3, 7151507), (11, 1950411), (33, 650137), (41, 523281), (101, 212421), (123, 174427), (157, 136653), (303, 70807), (451, 47571), (471, 45551), (1111, 19311), (1353, 15857), (1727, 12423), (3333, 6437), (4141, 5181)]