19996936

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{569}}^1$

素因数の和:789

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 19401464

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 191, 382, 569, 764, 1138, 1528, 2276, 4393, 4552, 8786, 13087, 17572, 26174, 35144, 52348, 104696, 108679, 217358, 434716, 869432, 2499617, 4999234, 9998468, 19996936]

約数ペア:

[(1, 19996936), (2, 9998468), (4, 4999234), (8, 2499617), (23, 869432), (46, 434716), (92, 217358), (184, 108679), (191, 104696), (382, 52348), (569, 35144), (764, 26174), (1138, 17572), (1528, 13087), (2276, 8786), (4393, 4552)]