201989817

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 316293120

約数和(自身を除く): 114303303

約数列:

[1, 3, 9, 19, 57, 71, 127, 131, 171, 213, 381, 393, 639, 1143, 1179, 1349, 2413, 2489, 4047, 7239, 7467, 9017, 9301, 12141, 16637, 21717, 22401, 27051, 27903, 49911, 81153, 83709, 149733, 171323, 176719, 316103, 513969, 530157, 948309, 1181227, 1541907, 1590471, 2844927, 3543681, 10631043, 22443313, 67329939, 201989817]

約数ペア:

[(1, 201989817), (3, 67329939), (9, 22443313), (19, 10631043), (57, 3543681), (71, 2844927), (127, 1590471), (131, 1541907), (171, 1181227), (213, 948309), (381, 530157), (393, 513969), (639, 316103), (1143, 176719), (1179, 171323), (1349, 149733), (2413, 83709), (2489, 81153), (4047, 49911), (7239, 27903), (7467, 27051), (9017, 22401), (9301, 21717), (12141, 16637)]