21296872

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140111}}^1$

素因数の和:140136

約数の個数: 16

約数和(自身を含む): 42033600

約数和(自身を除く): 20736728

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140111, 280222, 560444, 1120888, 2662109, 5324218, 10648436, 21296872]

約数ペア:

[(1, 21296872), (2, 10648436), (4, 5324218), (8, 2662109), (19, 1120888), (38, 560444), (76, 280222), (152, 140111)]