19785854

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1$

素因数の和:376

約数の個数: 32

約数和(自身を含む): 33592320

約数和(自身を除く): 13806466

約数列:

[1, 2, 11, 22, 53, 71, 106, 142, 239, 478, 583, 781, 1166, 1562, 2629, 3763, 5258, 7526, 12667, 16969, 25334, 33938, 41393, 82786, 139337, 186659, 278674, 373318, 899357, 1798714, 9892927, 19785854]

約数ペア:

[(1, 19785854), (2, 9892927), (11, 1798714), (22, 899357), (53, 373318), (71, 278674), (106, 186659), (142, 139337), (239, 82786), (478, 41393), (583, 33938), (781, 25334), (1166, 16969), (1562, 12667), (2629, 7526), (3763, 5258)]