21999666

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:435

約数の個数: 64

約数和(自身を含む): 51383808

約数和(自身を除く): 29384142

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 47, 51, 78, 94, 102, 141, 221, 282, 353, 442, 611, 663, 706, 799, 1059, 1222, 1326, 1598, 1833, 2118, 2397, 3666, 4589, 4794, 6001, 9178, 10387, 12002, 13767, 16591, 18003, 20774, 27534, 31161, 33182, 36006, 49773, 62322, 78013, 99546, 156026, 215683, 234039, 282047, 431366, 468078, 564094, 647049, 846141, 1294098, 1692282, 3666611, 7333222, 10999833, 21999666]

約数ペア:

[(1, 21999666), (2, 10999833), (3, 7333222), (6, 3666611), (13, 1692282), (17, 1294098), (26, 846141), (34, 647049), (39, 564094), (47, 468078), (51, 431366), (78, 282047), (94, 234039), (102, 215683), (141, 156026), (221, 99546), (282, 78013), (353, 62322), (442, 49773), (611, 36006), (663, 33182), (706, 31161), (799, 27534), (1059, 20774), (1222, 18003), (1326, 16591), (1598, 13767), (1833, 12002), (2118, 10387), (2397, 9178), (3666, 6001), (4589, 4794)]