21004128

素因数分解:

$2^5\times 3^2\times {\mathrm{72931}}^1$

素因数の和:72947

約数の個数: 36

約数和(自身を含む): 59731308

約数和(自身を除く): 38727180

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 72931, 145862, 218793, 291724, 437586, 583448, 656379, 875172, 1166896, 1312758, 1750344, 2333792, 2625516, 3500688, 5251032, 7001376, 10502064, 21004128]

約数ペア:

[(1, 21004128), (2, 10502064), (3, 7001376), (4, 5251032), (6, 3500688), (8, 2625516), (9, 2333792), (12, 1750344), (16, 1312758), (18, 1166896), (24, 875172), (32, 656379), (36, 583448), (48, 437586), (72, 291724), (96, 218793), (144, 145862), (288, 72931)]