21377603

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:179

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 4749757

約数列:

[1, 13, 19, 23, 53, 71, 247, 299, 437, 689, 923, 1007, 1219, 1349, 1633, 3763, 5681, 13091, 15847, 17537, 21229, 23161, 31027, 48919, 71497, 86549, 301093, 403351, 929461, 1125137, 1644431, 21377603]

約数ペア:

[(1, 21377603), (13, 1644431), (19, 1125137), (23, 929461), (53, 403351), (71, 301093), (247, 86549), (299, 71497), (437, 48919), (689, 31027), (923, 23161), (1007, 21229), (1219, 17537), (1349, 15847), (1633, 13091), (3763, 5681)]