21207132

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{8297}}^1$

素因数の和:8378

約数の個数: 36

約数和(自身を含む): 54368496

約数和(自身を除く): 33161364

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 8297, 16594, 24891, 33188, 49782, 74673, 99564, 149346, 298692, 589087, 1178174, 1767261, 2356348, 3534522, 5301783, 7069044, 10603566, 21207132]

約数ペア:

[(1, 21207132), (2, 10603566), (3, 7069044), (4, 5301783), (6, 3534522), (9, 2356348), (12, 1767261), (18, 1178174), (36, 589087), (71, 298692), (142, 149346), (213, 99564), (284, 74673), (426, 49782), (639, 33188), (852, 24891), (1278, 16594), (2556, 8297)]