21193898

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 35942400

約数和(自身を除く): 14748502

約数列:

[1, 2, 11, 22, 47, 94, 103, 199, 206, 398, 517, 1034, 1133, 2189, 2266, 4378, 4841, 9353, 9682, 18706, 20497, 40994, 53251, 102883, 106502, 205766, 225467, 450934, 963359, 1926718, 10596949, 21193898]

約数ペア:

[(1, 21193898), (2, 10596949), (11, 1926718), (22, 963359), (47, 450934), (94, 225467), (103, 205766), (199, 106502), (206, 102883), (398, 53251), (517, 40994), (1034, 20497), (1133, 18706), (2189, 9682), (2266, 9353), (4378, 4841)]