21476289

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{7109}}^1$

素因数の和:7184

約数の個数: 16

約数和(自身を含む): 30715200

約数和(自身を除く): 9238911

約数列:

[1, 3, 19, 53, 57, 159, 1007, 3021, 7109, 21327, 135071, 376777, 405213, 1130331, 7158763, 21476289]

約数ペア:

[(1, 21476289), (3, 7158763), (19, 1130331), (53, 405213), (57, 376777), (159, 135071), (1007, 21327), (3021, 7109)]