21856042

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{293}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 37537920

約数和(自身を除く): 15681878

約数列:

[1, 2, 13, 19, 26, 38, 151, 247, 293, 302, 494, 586, 1963, 2869, 3809, 3926, 5567, 5738, 7618, 11134, 37297, 44243, 72371, 74594, 88486, 144742, 575159, 840617, 1150318, 1681234, 10928021, 21856042]

約数ペア:

[(1, 21856042), (2, 10928021), (13, 1681234), (19, 1150318), (26, 840617), (38, 575159), (151, 144742), (247, 88486), (293, 74594), (302, 72371), (494, 44243), (586, 37297), (1963, 11134), (2869, 7618), (3809, 5738), (3926, 5567)]