21891567284

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{1231}}^1\times {\mathrm{261523}}^1$

素因数の和:262775

約数の個数: 24

約数和(自身を含む): 40596893568

約数和(自身を除く): 18705326284

約数列:

[1, 2, 4, 17, 34, 68, 1231, 2462, 4924, 20927, 41854, 83708, 261523, 523046, 1046092, 4445891, 8891782, 17783564, 321934813, 643869626, 1287739252, 5472891821, 10945783642, 21891567284]

約数ペア:

[(1, 21891567284), (2, 10945783642), (4, 5472891821), (17, 1287739252), (34, 643869626), (68, 321934813), (1231, 17783564), (2462, 8891782), (4924, 4445891), (20927, 1046092), (41854, 523046), (83708, 261523)]