19878826

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{2503}}^1$

素因数の和:2554

約数の個数: 24

約数和(自身を含む): 34344864

約数和(自身を除く): 14466038

約数列:

[1, 2, 11, 19, 22, 38, 209, 361, 418, 722, 2503, 3971, 5006, 7942, 27533, 47557, 55066, 95114, 523127, 903583, 1046254, 1807166, 9939413, 19878826]

約数ペア:

[(1, 19878826), (2, 9939413), (11, 1807166), (19, 1046254), (22, 903583), (38, 523127), (209, 95114), (361, 55066), (418, 47557), (722, 27533), (2503, 7942), (3971, 5006)]