18996159

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{467}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 12453441

約数列:

[1, 3, 7, 13, 21, 39, 91, 149, 273, 447, 467, 1043, 1401, 1937, 3129, 3269, 5811, 6071, 9807, 13559, 18213, 40677, 42497, 69583, 127491, 208749, 487081, 904579, 1461243, 2713737, 6332053, 18996159]

約数ペア:

[(1, 18996159), (3, 6332053), (7, 2713737), (13, 1461243), (21, 904579), (39, 487081), (91, 208749), (149, 127491), (273, 69583), (447, 42497), (467, 40677), (1043, 18213), (1401, 13559), (1937, 9807), (3129, 6071), (3269, 5811)]