21296492

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40031}}^1$

素因数の和:40061

約数の個数: 24

約数和(自身を含む): 44835840

約数和(自身を除く): 23539348

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40031, 80062, 160124, 280217, 560434, 760589, 1120868, 1521178, 3042356, 5324123, 10648246, 21296492]

約数ペア:

[(1, 21296492), (2, 10648246), (4, 5324123), (7, 3042356), (14, 1521178), (19, 1120868), (28, 760589), (38, 560434), (76, 280217), (133, 160124), (266, 80062), (532, 40031)]