900081

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:190

約数の個数: 36

約数和(自身を含む): 1639092

約数和(自身を除く): 739011

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 157, 273, 441, 471, 637, 819, 1099, 1413, 1911, 2041, 3297, 5733, 6123, 7693, 9891, 14287, 18369, 23079, 42861, 69237, 100009, 128583, 300027, 900081]

約数ペア:

[(1, 900081), (3, 300027), (7, 128583), (9, 100009), (13, 69237), (21, 42861), (39, 23079), (49, 18369), (63, 14287), (91, 9891), (117, 7693), (147, 6123), (157, 5733), (273, 3297), (441, 2041), (471, 1911), (637, 1413), (819, 1099)]