21492458

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{313}}^1$

素因数の和:486

約数の個数: 32

約数和(自身を含む): 36926400

約数和(自身を除く): 15433942

約数列:

[1, 2, 13, 19, 26, 38, 139, 247, 278, 313, 494, 626, 1807, 2641, 3614, 4069, 5282, 5947, 8138, 11894, 34333, 43507, 68666, 77311, 87014, 154622, 565591, 826633, 1131182, 1653266, 10746229, 21492458]

約数ペア:

[(1, 21492458), (2, 10746229), (13, 1653266), (19, 1131182), (26, 826633), (38, 565591), (139, 154622), (247, 87014), (278, 77311), (313, 68666), (494, 43507), (626, 34333), (1807, 11894), (2641, 8138), (3614, 5947), (4069, 5282)]