4009131

素因数分解:

$3^2\times 7^2\times {\mathrm{9091}}^1$

素因数の和:9111

約数の個数: 18

約数和(自身を含む): 6737172

約数和(自身を除く): 2728041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 9091, 27273, 63637, 81819, 190911, 445459, 572733, 1336377, 4009131]

約数ペア:

[(1, 4009131), (3, 1336377), (7, 572733), (9, 445459), (21, 190911), (49, 81819), (63, 63637), (147, 27273), (441, 9091)]