40037391

素因数分解:

$3^2\times {\mathrm{67}}^2\times {\mathrm{991}}^1$

素因数の和:1131

約数の個数: 18

約数和(自身を含む): 58767072

約数和(自身を除く): 18729681

約数列:

[1, 3, 9, 67, 201, 603, 991, 2973, 4489, 8919, 13467, 40401, 66397, 199191, 597573, 4448599, 13345797, 40037391]

約数ペア:

[(1, 40037391), (3, 13345797), (9, 4448599), (67, 597573), (201, 199191), (603, 66397), (991, 40401), (2973, 13467), (4489, 8919)]