19742558

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{647}}^1$

素因数の和:752

約数の個数: 32

約数和(自身を含む): 34525440

約数和(自身を除く): 14782882

約数列:

[1, 2, 11, 19, 22, 38, 73, 146, 209, 418, 647, 803, 1294, 1387, 1606, 2774, 7117, 12293, 14234, 15257, 24586, 30514, 47231, 94462, 135223, 270446, 519541, 897389, 1039082, 1794778, 9871279, 19742558]

約数ペア:

[(1, 19742558), (2, 9871279), (11, 1794778), (19, 1039082), (22, 897389), (38, 519541), (73, 270446), (146, 135223), (209, 94462), (418, 47231), (647, 30514), (803, 24586), (1294, 15257), (1387, 14234), (1606, 12293), (2774, 7117)]