21384424

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{523}}^1$

素因数の和:817

約数の個数: 32

約数和(自身を含む): 42444000

約数和(自身を除く): 21059576

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 269, 523, 538, 1046, 1076, 2092, 2152, 4184, 5111, 9937, 10222, 19874, 20444, 39748, 40888, 79496, 140687, 281374, 562748, 1125496, 2673053, 5346106, 10692212, 21384424]

約数ペア:

[(1, 21384424), (2, 10692212), (4, 5346106), (8, 2673053), (19, 1125496), (38, 562748), (76, 281374), (152, 140687), (269, 79496), (523, 40888), (538, 39748), (1046, 20444), (1076, 19874), (2092, 10222), (2152, 9937), (4184, 5111)]