21311568

素因数分解:

$2^4\times 3^2\times {\mathrm{147997}}^1$

素因数の和:148011

約数の個数: 30

約数和(自身を含む): 59643194

約数和(自身を除く): 38331626

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 147997, 295994, 443991, 591988, 887982, 1183976, 1331973, 1775964, 2367952, 2663946, 3551928, 5327892, 7103856, 10655784, 21311568]

約数ペア:

[(1, 21311568), (2, 10655784), (3, 7103856), (4, 5327892), (6, 3551928), (8, 2663946), (9, 2367952), (12, 1775964), (16, 1331973), (18, 1183976), (24, 887982), (36, 591988), (48, 443991), (72, 295994), (144, 147997)]