19983458

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{541}}^1$

素因数の和:650

約数の個数: 32

約数和(自身を含む): 34653312

約数和(自身を除く): 14669854

約数列:

[1, 2, 11, 22, 23, 46, 73, 146, 253, 506, 541, 803, 1082, 1606, 1679, 3358, 5951, 11902, 12443, 18469, 24886, 36938, 39493, 78986, 136873, 273746, 434423, 868846, 908339, 1816678, 9991729, 19983458]

約数ペア:

[(1, 19983458), (2, 9991729), (11, 1816678), (22, 908339), (23, 868846), (46, 434423), (73, 273746), (146, 136873), (253, 78986), (506, 39493), (541, 36938), (803, 24886), (1082, 18469), (1606, 12443), (1679, 11902), (3358, 5951)]