21956210

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1583}}^1$

素因数の和:1682

約数の個数: 32

約数和(自身を含む): 42197760

約数和(自身を除く): 20241550

約数列:

[1, 2, 5, 10, 19, 38, 73, 95, 146, 190, 365, 730, 1387, 1583, 2774, 3166, 6935, 7915, 13870, 15830, 30077, 60154, 115559, 150385, 231118, 300770, 577795, 1155590, 2195621, 4391242, 10978105, 21956210]

約数ペア:

[(1, 21956210), (2, 10978105), (5, 4391242), (10, 2195621), (19, 1155590), (38, 577795), (73, 300770), (95, 231118), (146, 150385), (190, 115559), (365, 60154), (730, 30077), (1387, 15830), (1583, 13870), (2774, 7915), (3166, 6935)]